Those epipen stories might not seem that bad or even a bit funny but they always have me worried. I think most people can tell you about racing heart, elevated blood pressure, and sweating with epinephrine but it also has a vasoconstrictive effect so it’s often used with local anesthetics to slow down the clearance of drug from the injection site giving you longer duration of local effects and reduced systemic effects. That same reason makes it a bad choice to use in areas like your nose, earlobes, fingers, or toes which would be prone ischemia or even necrosis from the vasoconstriction. You might feel just a little cold or numb but it’s definitely possible to lose your finger so please don’t wait to go to the ER/doctor if you accidentally stick yourself with an epipen.
Getting the purified H1 protein will not cause you to get the virus. It is a purified protein subunit lacking any dna/rna for viral replication. I did a similar thing with poly I:C (small viral dna probe) and bacterial lipids (both toll like receptor agonists) got the components of viruses and bacteria in my eye, but no active virus or bacteria ever got into my eye. Hope this helps!
If anything, I might expect that it could have acted as an unintentional vaccination against the H1 protein subunit... but not something to count on of course.
@@rougenaxela better than any of the vaccines to my knowledge... wasnt the spike protein heavily glycosylated? Doubt those motifs were conveyed by an rna vaccine transcribed in humans. My assumption why the vaccines were only so effective but haven't looked into it
First story reminded me of this. I've worked as a barista and the lady that trained me had the impressive ability to handle 180+ degree metal espresso machine components with her bare fingertips without flinching. Turns out she had frostbite when she was younger and lost sensation in her fingertips as well, which was why she was able to do that. Pretty neat that in the long run it enabled her to do her job better.
@@deltab9768 She would only hold or touch the metal components very briefly; As far as I know, at that temperature (that's in F, not C) it takes at least a solid second of contact to actually leave a burn.
I know a quite similar EpiPen story. During EMR training at out firefighter academy we were shown an EpiPen with a curled tip. They used to hand expired EpiPens out to students, so that they could take a look at it and see a demenstration into a dummy. All of this went fine for multiple years till one student played around to much and gave an unwilling demonstartion on its use. He managed to inject his index finger with it, which caused the needle to bent into his finger bone. He was promptly transported to the next hospital. Since then all new firefighters undegoing EMR training get to see that bent EpiPen.
I work with pipetting robots, they are still quite expensive and/or have poor chemical resistance. One of the hardest parts of building process/production robotics as far as i have seen is keeping out vapors and other things that will destroy the needed delicate electronics. Like THF vapor will readily dissolve most plastics, so making one to handle Phenol would be rough I imagine. Still moving towards automated hazardous chemistry would be ideal!
Yes, use robots for dangerous tasks. If you know what chemicals the robot is expected to be exposed to, you can devise some protection specifically for that chemical. Like a coat of phenol or THF resistant varnish over sensitive components, or using some alternative material.
Here's another EpiPen-adjacent story for you. A very common local anesthetic for minor surgical procedures (like tooth extraction, or surgical removal of small tumors) is lidocaine and epinephrine. Lidocaine is the anesthetic, and epinephrine reduces bleeding by constricting the blood vessels. Due to some quirk of biochemistry, I personally metabolize lidocaine (and presumably other -caine alkaloids) very rapidly, but epinephrine more-slowly than normal. What this means in practice, is an oral surgeon running out of prepared injection solution, and having me just tough out the last 15 minutes of a root canal, or having a surgeon tell me that they "can't" give me any more local anesthetic, because my BP/heart rate is too high, and just finishing up with cauterizing my wound and sewing me up with no effective pain relief. Also, I'm an absolute *wreck* after any of these procedures, because of the residual jitters and racing heart. I've got a note in my medical chart about this now - we'll see if they actually do anything about it the next time I need something done.
This is a bit of an old comment, but my husband gets a very similar reaction. He now declines any numbing at all at the dentist because the after-effects are worse for him than the procedure. Admittedly, the only root canal he had was after the nerve in the tooth died, though (doctor wanted to see if inflammation will resolve by itself after removing a badly done filling left by a previous doctor. He was supposed to come back if it hurts too much. Apparently "too much" is a rather imprecise way to word things).
"HPI" (high pressure injection) injuries are absolutely terrifying. They force large quantities of usually toxic things into someone's body under extreme pressure almost instantaneously. Meaning you have the physical trauma of what is basically like getting shot, the physical trauma of the decompression (if the injected stuff is compressed), often temperature injuries, and on top of all that the toxicity. And the worst part is often feels like a barely noticeable pinprick at first. Someone might think they just pinched their fingertip when in reality they've already lost that arm and now have minutes left to live without immediate emergency care.
Speaking of liquid injection injury, friend from uni worked doing industrial pressure washing. Their machines ran more like 15000PSI than the 2-3000 you get in the home machines. They were doing some work inside a large tank. Hanging from ropes to do it. They were doing sandblasting and were feeding the mixed sand and water at 15K PSI to the hosed. The guy he was with had a fitting burst near his shoulder and it injected his shoulder to the size of a softball with the sand and water mix. I'm not sure how it turned out, but with sand being injected deep into tissue around a joint like that I can't imagine it ended well.
Highpreasure liquids thru small openings is... intresting! Owerheated steam in boilers acts the same, but is invisible. You hear the leak by the noice and you see it only some way off where it condenses! If you want to find the leak itself, use a broomhandle and wave it in front of you, when the handle gets choped off you have found the leak! 😉
Also, the stories about hydraulic fluid leaks are true. When I had my grass-cutting business, the mowers I used had hydraulic pumps and motors to drive the wheels. The instruction manuals warned of high-pressure leaks from the hoses.
my tractors manuals in the farm are full of warnings too. Pretty sure the combines are even worse, as they even have hydraulics driven wheels, but I do not operate these. may be only higher flow though, not very high pressure, I never chacked.
My father is an HVAC technician, and on one job he took me on, he had to replace a pipe in a hospital's liquid oxygen plant. I don't remember much because it was such a long time ago snd I was just a kid, but I did vividly remember him using this chemical jacket to run an endothermic reaction that made dry ice, in order to cool the pipe so he could cut it easier (since you can't just use an acetylene torch to cut it due to the 100% oxygen atmosphere on the inside of the pipe). When he was done, he set the dry ice outside in the sun to sublimate, and when he saw my interest in it, he gave me a pair of thick leather gloves so that I could play with it safely. I've been fascinated with cryogenics ever since. If I were to go back to school, that would probably be one of the areas I'd be most interested in, though I'm not sure how much research is being done into cryogenics these days.
My high school has a permanently closed (probably locked) door labeled cryogenics. It's probably a joke since the door to the boiler room is labeled "Time Travel Stuff" and a staff meeting room is labeled "Holodeck A" but there's no way of making sure until you see what the room really contains...
There are a few issues with these stories and your commentary regarding the stories. In order of appearance, ethyl chloride is still used as a topical anesthetic. It is less used now than it had been previously, in part due to cost (it is commonly supplied as a pressurized glass bottle, due solely to the vapor pressure of the compound, and must be packaged and shipped as potentially hazardous for obvious reasons and the compound's flammability if it is released in transit). Usually it is used for an injection or other very brief but painful procedure in a particularly fearful patient or, rarely, for placement of an intravenous catheter. A few mL are sprayed over an area and the rapid evaporation freezes the most superficial tissues, causing a very temporary anesthesia. No, we don't do this in a fume hood or negative pressure room. Just a normal hospital examination room with normal hospital ventilation (which typically exceeds the air changes per hour of residential HVAC systems and most other non-medical businesses). The patient and room do not need any particular decontamination from its use. In the hands of someone competent, there is very little risk. With that said, I have seen deep frostbite as a result of a professional being too enthusiastic with their spraying, and I have heard from colleagues who have seen worse. In particular, people doing stupid things with cautery while using ethyl chloride or spraying the area way, way too long. The first can cause a big fireball and the second can cause an impressive amount of tissue death. These egregious iatrogenic injuries are exceptionally rare. The amount of ethyl chloride that anyone is exposed to in medical care is so negligible that your mention of carcinogenesis is pure and unadulterated fearmongering. Although it is a known animal carcinogen there is no evidence that it is a human carcinogen, and there are plenty of other very routine medical interventions with a very real human carcinogenic potential that exceeds this theoretical risk by orders of magnitude. Regarding the epinephrine autoinjectors, I have treated many injuries from inappropriate injection. In one case a person intentionally injected their assailant, which was probably not the brightest idea to administer additional "fight or flight" hormone to someone actively committing battery. The biggest concern is when people inject into a digit, as concentrated epinephrine into a finger can cause enough vasoconstriction to impair circulation. This means ischemia, which can be very painful, or in the worst case infarction/ necrosis (death) of the tissues. Sending someone to an emergency department for evaluation after any epinephrine autoinjector use, whether such use was medically necessary or not, would be prudent. This does not mean that every case, or even most cases, will be serious but it takes a proper history and examination to sort the serious from the rest. In 20 years as a physician the overwhelming majority of such patients, even those who correctly used the epinephrine autoinjector for a potentially life-threatening allergic reaction, were able to be treated and safely discharged home. With regards to using someone else's autoinjector, these are single-use needles. Before discharge the needle should be clean, unless someone was not storing the device in the included clear plastic tube. After use they have a bright orange safety shield that covers the needle to prevent accidental injuries. Your comment about using someone else's autoinjector, again, is fearmongering. A device that has been used is fully discharged and is incapable of injecting anyone else. In short, many of the items that you seem to think are a big deal are relatively minor emergencies. The high-pressure injection, however, is a significant emergency until proven otherwise. As a water jet is capable of cutting hardened steel, it most certainly can cut through any part of the human body. The trauma can be challenging to evaluate, as the entrance wound is typically very small but the damage can be very deep. Too much liquid in certain areas can cause a compartment syndrome, which is a condition that requires immediate surgery. The liquid that was injected could itself be toxic to the tissues. Of all of the issues I have seen with high-pressure hydraulic injection, infection tends to be very uncommon as an immediate concern compared to the prior mentioned direct complications, although those complications can vastly increase the risk of infection developing later. Most human pathogens don't survive too well in hydraulic oil, which has been the majority of injuries I have treated, but an aqueous solution would definitely make me more concerned for development of an infection as an immediate result of the injury. After all, nobody runs sterile water through their pressure washer or water jet cutter.
These are valid points, and I appreciate your input (I will pin your comment). The used epipen injection had injected both the sister and the mother, no? In that story the mother was disposing of the *used* needles from her daughter (OP's sister), and was still accidentally injected. She also experienced symptoms which sound similar to someone who was injected with epinephrine, which suggests some amount of the drug did inject a second person.
My daughter needs to carry an EpiPen, over 20 years ago they did not come in a plastic case or have a safety feature for deployed needles. I made my own carry case from some electrical conduit and test tube stoppers, it just seemed too likely to be dangerous otherwise . Also If you held them to long one could end up inflated with a bubble of the n2 propellant, at least that's what I was told it was. It was also a wide bore needle, seemed like it could hold 0.01ml by itself . I've never been stuck with the newer design so I don't know if those last two points are still possible.
"Your comment about using someone else's autoinjector, again, is fearmongering." - So injecting the contents of autoinjectors that have not been prescribed to you (and that there is no medical reason for you to use) is nothing to worry about, and claiming that one would be concerned about it is fearmongering? Let's agree to disagree on that one.
@@That_Chemist I would recommend looking at images online of the EpiPen units. That orange tip extends immediately once the unit has been deployed and it fully covers the needle. It sounds like this person was disposing of an expired, unused device. That would be the only way to get stuck, short of forcefully disassembling a used device. I have never seen one fail to sheath the needle except for extremely rare occurrences of improper use, such as attempting to discharge it into a solid object. That will easily bend the needle and prevent the sheath from extending.
This has probably already been said, but I didn't find it on the first page, so... When searching for the source of a high-pressure leak, the standard method is to put a rag on a stick, and use that to probe around for the leak. When the rag is observed to be magically slicing in twain by an unseen force, you know where in space the invisible beam of death is passing. From there, you will generally be able to tell where its coming from, and then you can shut down the equipment, test again to make sure there is no residual cutting action, and make your repairs.
Hydraulic pressure is scary stuff! I remember hearing a story about an oil rigger who was working on an oil rig in Canada with US and Canadian QD hydraulic 4+" diameter hoses. The two QD hoses connected, but weren't supposed to. He went to break the connection and was un-lived by the blast of hydraulic pressure. I've heard many stories of people needing to get amputations from hydraulic leaks as well. It's certainly not something to mess around with.
how? he just reads other people's posts and provides 5 seconds of usually meaningless commentary. "oh that sounds really bad" sort of insightful stuff. I'm sure that takes him so much effort to produce.
I've known a couple of people who tried to get high using epipens. Apparently it's extremely uncomfortable and has a tendency to induce panic attacks. Who woulda thought...
as someone who used to need one they may be life saving but damn if i didnt wish i just took some benadril and slept off the discomfort. the pain from the injection combined with the gutpunch and almost sezurelike state due to it reacting like an amplifier for my ADHD was hell.
water as a whole is pretty scary. the fine jets is an example, but flashfloods and such can apply such a violent amount of unrelenting force it's absolutely insane.
Those scary stories about pinhole leaks in hydraulic lines are no joke. My old lab manager made all the lab assistants watch a slideshow of hydraulic injection injuries before going near that equipment, to be sure we wouldn't get too brave or stupid around them.
man these new thumbnails for the past 2 weeks have been awesome! I miss the old thumbnails but the new thumbnails are just as awesome but in a different way!
the h1 protein from influenza is called hemagglutinin, and aids the virus' ability to attach to and infect cells. on its own, it is not infectious. the name "H1N1" means that on the surface of the swine flu virus it has: type 1 hemagglutinin and type 1 neuraminidase. H5N1 would be type 5 hemagglutinin and type 1 neuraminidase, etc.
My instructors in Civil Defense once told our intake platoon a story about how a bunch of guys in Hazmat once teargassed themselves by accident. For training purposes, instructors get to use these tablets of very low concentration teargas to test how well the trainees have donned their hazmat suits, whoever starts crying obviously didn't get a proper seal on their PPE. Those guys from hazmat, for whatever reason, put multiple of these tablets at once into the system (they probably wanted to see what it was like to be affected by said tear gas), and discovered to their horror that activating that many tablets at once increased the concentration to full-strength tear gas (it's the same formula the local police use in cases of riot control). They ended up leaving the testing room half-laughing half-crying at their foolishness.
As far as high pressure leaks go. At the refinery we had a 40” high pressure steam line coming right off of the boiler house at ground level. In order to walk into the boiler house you had to walk right along side of that header pipe for about 50’. At each end of the walkway was a trash can with a couple of push brooms in them. The idea was, that before everyone in your party walked down that walkway someone was to take a broom and run it down the pipe! If the bristles suddenly flew off, or the broom got cut in half you knew there was a leak and had to call in the Safety Department immediately……
@@user-mn8lz7gf6d Safety Department would run out there and put up some of that “magic” yellow tape and you’d be safe again. 8’ icicle hanging from a 10 story unit, yellow tape! Asbestos pipe insulation fell off, yellow tape! H2S leak, yellow tape will save you! LoL!
I have a kind of funny story. When I was in high school in a chemistry class, our teacher was demonstrating something about gas laws ( I don’t remember what now ) with a set of very old brass balls that were pressure sealed to each other with a metal pipe. This thing had to be at least 50 years old, It has a pressure meter on one side. Long story short, one of the students fainted during a demonstration where one side was placed under a Bunsen burner and as a result it was left on while that student was being attended to. To no one’s surprise, the pressure built up so much that one of the balls exploded off with a sound I can only describe as cataclysmic. The ball wedged itself half way into the wall.
The last lines were hilarious.....this reminds me of my friend who used to say same stuffs before doing terrible things in lab. And in addition to it, he did it often. He used to flaunt his knowledge of chemicals in front of juniors, and attributed himself as "expert" in it 🤣.....but his consistent bad luck of shattering glassware strikes most of the times and that gave him the title of "Chem exfart" in the school 🤣😭
Wait a second, so you're telling me that on Halloween I'm not supposed to put dry ice in my mouth, so that I can scare the kids when fog is released as I speak to them? ⊙.☉
A classmate in high school tried to eat a piece of strawberry that was dipped in LN2 and Crushed... He couldn't talk right for a few weeks afterwards...
regarding the phenol thing, it would have been a lot more sensible to get it delivered in a heated tanker, with no need for the plant operators to melt it
the dry ice story reminds me of a time I was working with liquid helium. We were pumping it out of a big dewer (it was over 5 ft tall) which required two students wearing protective gloves holding some steel (I think it was steel) pipes in place as the helium pumped out. As it turns out, sticking your hand too close to the mouth of the tank is a bad idea and "too close" is not as close as you think it is. Anyways the helium basically froze a hole into the glove on my right hand and I felt a cold prick and immediately pulled my hand away. It felt like a burn and I had a small patch of blistered skin. Needless to say I kept my hands well clear from any possible venting holes in cold dewers from then on.
Re. high pressure jets: an ex-submariner told me the approved method of checking for leaks in the high pressure steam piping was to sweep around a broom handle. If a chunk suddenly got sliced off the end of the handle, you were getting close.
2:25 Your camp story sounds very similar to mine. A good few years back I was at a week long camp in northern Wisconsin. The last day we were there we had to get up relativley early and get things packed up before heading down to the mess hall for breakfast and leave. Well that week was a rainy one to put it lightly. Heavy rain and storms all week with a couple short lived water spouts on the lake nearby too. Our rainfly didn't exist since my friend and I were using his tent that his sister forgot to pack the rainfly in after she used it. Being arrogant and "inventive" we fabricated one out of some smaller tent rainflies and duct tape. For the most part it wasnt bad... except one night when we had to bail to mess hall for a tornado warning. Came back to an inch of water in the tent. Now on the last morning I woke up with horrendous back pain. Couldn't sit comfortably let alone stand upright with stretching making me almost pass out. I had to ride in the truck down to camp instead of walking with my troop. I couldn't eat and slept heavy the car ride home. The problem is, thats not where things ended. I got a heavy fever for a day then woke up the following morning with spots covering my whole body without fever, itching, pain, etc. I felt normal sans the obviously weird spots. Went to primary care doc and she referred me to a dermatologist who basically had no clue what it was either. Told me to take oatmeal baths and see if it does anything and report back. Took two weeks for it to disappear but the oatmeal baths helped-ish.
8:55 I also heard a story of a guy who was operating a tractor with a hydraulic lifter when a hydraulic tube burst and shot a jet of oil into his leg. They tried to get most of the oil out of the wound at the ER using sponges but eventually the leg still got inflamed and had to be amputated.
About the ethyl chloride: yep, it is like ether, it knocks people unconscious but it is safe enough to be used as anesthesia. IIRC most general anesthesia are haloethanes so ethyl chloride might be used sometimes, i would guess it's also alkylating like methyl iodide, but possibly slightly less.
We were converting stilbene dibromide to diphenylacetylene, and about halfway through the lab, one of the reflux setups began to rapidly turn dark orange and leak out weird orange vapor. One of the students mistook the chloric acid for HCl and used it in the reflux, and instead of freeing the bromine as bromide ions in solution, it created free bromine gas. Great stuff.
Another tale for the brewery, that happend last friday. A apprentice was told to clean two storage tanks super fast, because he came in over 4 hours late and on friday we only work 6 hours. Since I became a journeyman recently I had to have a look over him and metaphorically kick his ass, if he is too slow. He is late a lot and he is "ill" a lot, also he has skipped school every time so far, so I don't know, why he hasn't been kicked out already. Anyway, we clean the storage tanks manually with a cleaning solution containing sodiumhypochloride, potassiumhypochloride and potassiumhydroxide. Because in the first tank he cleaned the emaile coating is damaged at many places the surface is rough and throws many tiny drops of solution in the air. When he went in I was cleaning the pressure velve of the tank so I didn't see him. When he was done inside and came out I noticed that he didn't wore any goggels. When I asked him why he didn't put on gis goggels, he said "I don't need them". I was really shocked by his stupidity and tried to explain the dangers of the chemicals in the solution, wich, by the way, was way too concentrated. After I explained it to him, he still refused to wear his goggels. Just a second later the beam of water from the hose hit the edge oft the tanks and sprayed water all over him including in his eyes. Luckily there was no chemical on the edge. After explaining the dangers again and telling him how fast getting it into your eyes can happen he finally put on his goggels.
3:50 It’s weird that they don’t have tank heating coils for this. On a ship, you’d just have a bunch of steam pipes built into the bottom of the cargo tank so you could just use steam heat to melt all of the cargo.
Today's yikes awardee reminds me of when my HS chem teacher would fill a bowl with soapy water, and bubble butane through it. She would then let us scoop it up with our hands, and then light it, making a nice fireball.
Finally I have a relevant story This comes from my EMT instructor He had a class and passed around an epipen. He warned the students multiple times that this was an actual epipen and not to take off the safety cap. Sure enough as it’s getting passed around, someone in the back of the class took off the safety cap and stabbed themself through the finger. We use dummy pens now
At my current job a test to accelerate aging og experimental membranes using 4 molar NaOH did suffer an unexpected end. The engineer opening the oven found that the tray placed to catch posible leaks was filled with liquid. Soon alter he saw a hole in the borosilicate bottle. As the glass was eaten away and the top was standing on a paper thin layer. Lesson learned hot hydroxide solutions are bad for glass.
Epi-pen user here: I've had to use one a couple times, and I can say it isn't fun, but it is... fascinating. Among other things, it made me VERY BRAVE [like, feeling I could do anything] and also completely giddy. it also made all of my muscles fire non-stop for like an hour or two [I couldn't exactly keep time] -- kinda made me realize I definitely do have anxiety all the time, because it got rid of everything else. Would definitely not recommend people do this though unless you actually have an allergic reaction or other reason to use epi. it's very unpleasant overall... one time I nearly broke my brother's hand [tbf, he asked for it. 'how strong is your handshake now? well let's see...] My cousin, a lumberjack tried as well, and we were evenly matched. We shook until it wore off.. I don't know how long that was, but maybe like 5-10m, though everything else was still firing for a good deal longer. too bad the god-tier strength enhancement doesn't last too long.
I remember back in middle school we were learning a little bit of early chemistry and the teacher was talking about what "alcohol" means, that it meant an OH on one point on the molecule. He showed a couple different alcohols and their structures, including phenol after talking about the struggle to figure out its structure. He said that if he stuck his hand in a bucket full of phenol he's be dead within the hour.
I didn't know, that dry ice is that dangerous. I've worked with that stuff daily and no protection. Carring dry ice pelets in a plastikbox (and using a metall scoop without gloves), jugling with bare hands and in summer, just open the big boxes to get a short cool breeze. Colegues even put one ore two pellets in their pockets and called it "Personal AC". Now i think, that was a littlte bit yikes.
I witnessed the opposite of a laboratory accident once: we had a chemist-turned-system-administrator in university that used to make mixes of vodka and honey for parties and store them in used (and rinsed) 1-litre bottles of 1-normal HCl. He would then store these bottles in the chemicals refrigerator because he was too lazy to walk all the 20 m to the one provided for food. One day, he didn't find one of the bottles. Nobody got hurt but, somewhere out there, a chemist was trying to titrate a solution with vodka.
0:09 wtf? no way dry ice does that! I've held chunks of it in my hand for the better part of 2 minutes and all I had to do was move it around a little bit so it wasn't on the same exact spot too long!
Liquid nitrogen was common enough where I worked that we could get it easily, but uncommon enough that we had fun playing with it. I once froze a piece of banana, but when I tried to eat it, it froze off a significant portion of the inside of my cheek. It took a long time to heal, and I can still feel the scars.
I'm intrigued by the "dry ice blasters" that are used to clean/degrease stuff... the idea that you're not using *solvent*, so the muck that gets blasted off can be cleaned up more easily... also for situations where electronics are involved (e.g. and car engine), you don't have to worry about water damage.
When i was a kid (about 4) i went to a shop with my parents that had a big box full of dry ice at the counter, i was used to eating lots of water ice on prawn trawlers and had no idea what dry ice even was so i grabbed a pellet which instantly stuck to my fingers and to get it off i stuck it straight in my mouth.. it instantly stuck to my tongue and burned so i had to just rip it out along with a chunk of my tongue that was frozen to it, luckily I was left with no permanent injury and the missing chuck of my tongue grew back in a few months.. dry ice on finders meh, dry ice in the mouth fecking ouch
Also, by older audience, I'm guessing he means not highschool/undergrad. There's a pretty strong metalworking cluster within the broader Makertube, with Fireball sitting alongside legends like This Old Tony and Blondiehacks. There are TOT viewers who started watching in their teens and have finished college and become professional engineers and machinists. Meanwhile in my mid-30s I still want to buy (and learn to use) a welder (probably TIG), lathe, and mill. Got a house with outbuildings last year, so I've sorted out one of the spaces to be my bike workshop/storeroom and am waiting for migrating birds to leave before I fit full height doors to the next space and start fitting better lighting and power.
H1N1 and stuff are just referring to the proteins on the surface of the virus. So the protein H1 itself isn't specifically a problem. Honestly the procedure describes for that lab sounds like the type of procedure that should be in place for handling all dangerous biological agents but unfortunately it's not always possible to limit human hands to safe work...
One time in my undergrad I left my apartment as usual to go to my chemistry lab, which was bit more than a mile away, but in a dumb lapse of attention I did not realize I was wearing shorts instead of pants until I was right outside the lab room. Fortunately I had built a good rapport with my TA in previous quarters and it was supposed to be a two day lab, so they would allow me to run back to my apartment to get changed. Needless to say I probably set a personal best mile time both ways. Here's the real kicker though. As I returned, huffing and puffing and dripping with sweat, I saw that my entire class was waiting outside the building for some reason. The TA then told me that soon after I left someone accidentally made a bunch of hydrogen sulfide and they had to evacuate the room until it could be fully vented. Which then took at least half an hour more. Since the incident happened at the start of the lab I was no more set back than most anyone else. So in the end, even though I made a dumb mistake, another person's dumb mistake basically made it so the only real consequence for me was some strenuous surprise exercise.
I was taught at the mill I worked at that even a small superheated steam leak (1300 psig, 700+ degF) can cut off your finger without hesitation. I never had interest in testing this for myself…
Re: the dry ice burn one, if anybody watches the content creator Tomato/Tomato Gaming, he apparently is missing feeling in part of I believe his left foot because someone spilled liquid nitrogen on it when he was a child. Wild stuff
Dry ice isn't harmless but it's not insta-frostbite as it's sometimes portrayed (YTer wbeaty has a video showing what you can get away with and what you can't, though I wish he was wearing goggles). I've handled plenty of it without gloves... if you keep it moving it just feels cool, and it only starts nipping at you after staying in one place for a second or two, or if you apply considerable pressure. Even then, the instinct is to drop it. So I'm surprised to hear about apparent long-term nerve damage (without any mention of more superficial frostbite signs!) from momentary contact with a small piece.
my favorite funfact about the epipen is that it's literally just adrenaline, that's why the heart goes crazy,you'd likely be calmer on meth and caffeine. military uses them for severe trauma and such, nothing else gets the body ready for action like adrenaline, same chemical responsible for incidents like women tearing through car panels with bare hands,not feeling pain, not thinking pain,just one objective,save the child.
"H1" and "N1" are varieties of surface proteins that can be on the flu virus. There's actually some very mild H1N1 flus, but that combination has a bad reputation because the 1918 Spanish flu had it.
Amateur... I've put my hand in liquid nitrogen... in a foam container (just make sure there's nothing metal to touch... leidenfrost effect for the win!
Why the hell would they be using sharps on their syringes?? I can't imagine it's necessary for the chemistry and blunt tips would eliminate ALL risk of accidentally (or intentionally!) self-injecting...
Question unrelated: have you worked with 1-bromo-2-fluorobenzene to perform a Grignard reaction and not have it react to itself to form a benzyne? And how do you combat this? A protecting group, temperature, a certain solvent?
Whenever i buy dry ice for kitchen use it comes in bricks, are the large chunks like a US standard or just an industry thing? (high density=cheaper to store and ship in large amounts)
This is my first time hearing that dry ice is dangerous and I have a bachelor's degree in a STEM field lol. I remember my parents got it for me and my brother to goof around with once because I'm pretty sure they just sold it at the grocery store... I was like 6 and my brother would have been 11.
asphyxiation is a risk (CO2 levels can also rise, which is bad for indoor air quality), frostbite is a risk, and if people are sealing it in a container that can cause an explosion risk!
@Viewer oh jheez I'm sorry to hear that. I just fear them and look away whenever I get one or see them. I had 45 shots over the span of 11 days when I was in the hospital, I was good for a few years afterwards. Now I'm back to getting squirmish when I see them. Something about puncturing makes me squirm. Even hearing or thinking about any puncture related injury makes me squirm. 😅
The only time I didn't mind being injected with a needle was when I was getting a blood test done by this gorgeous (I think maybe Russian, I don't know exactly) nurse. She was smoking hot lol.
Causing permanent damage to yourself to stop a kid touching it. Silly. Kids aren't stupid, they might touch it for a bit, it'll get uncomfortable and they'll drop it. Say "don't touch that" and they either won't, or they'll learn a valuable lesson about following instructions. Speaking of dropping it, why wouldn't the person who picked it up.
The dry ice story : I would have kept the kid away and crushed that dry ice with my shoe. NO direct contact with the skin, and gone in moments. EpiPens contain a good dose of adrenaline as well as antihistamines. The adrenaline can be a life saver when having a sever allergic reaction, but, to much can be pretty dangerous, even deadly. High pressure water jets are used to cut through the hardest alloys and stones. It can cleanly cut materials that can't be readily cut using other means or without shattering. So, you skin and bones have no hope to resist that.
My only comment on the H1N1 story is that if she were working with something live/biological matter like that, she likely didn't acquire an infectious dose, if i understand the story right.
@@That_Chemist just gotta know the danger and literally play hot potato. maybe with an egg sized piece at most. havent gotten frostbite at all from it. that said still better to have gloves yet with the leidenfrost effect being a thing you can do a bunch of stuff without if need be
That last post is why superstitions exist. You never tempt God/fate/the lab demons/the chemical by saying things like "nothing can go wrong", lol. Stay humble!
Those epipen stories might not seem that bad or even a bit funny but they always have me worried. I think most people can tell you about racing heart, elevated blood pressure, and sweating with epinephrine but it also has a vasoconstrictive effect so it’s often used with local anesthetics to slow down the clearance of drug from the injection site giving you longer duration of local effects and reduced systemic effects. That same reason makes it a bad choice to use in areas like your nose, earlobes, fingers, or toes which would be prone ischemia or even necrosis from the vasoconstriction. You might feel just a little cold or numb but it’s definitely possible to lose your finger so please don’t wait to go to the ER/doctor if you accidentally stick yourself with an epipen.
Getting the purified H1 protein will not cause you to get the virus. It is a purified protein subunit lacking any dna/rna for viral replication. I did a similar thing with poly I:C (small viral dna probe) and bacterial lipids (both toll like receptor agonists) got the components of viruses and bacteria in my eye, but no active virus or bacteria ever got into my eye. Hope this helps!
Thanks :)
If anything, I might expect that it could have acted as an unintentional vaccination against the H1 protein subunit... but not something to count on of course.
@@rougenaxela sounds possible but unlikely as the eye is an immune privileged site and most of the protein was likely removed by tears
@@nuip7936 I was referring to the story in the video, which was a case of stabbed in the finger.
@@rougenaxela better than any of the vaccines to my knowledge... wasnt the spike protein heavily glycosylated? Doubt those motifs were conveyed by an rna vaccine transcribed in humans. My assumption why the vaccines were only so effective but haven't looked into it
First story reminded me of this. I've worked as a barista and the lady that trained me had the impressive ability to handle 180+ degree metal espresso machine components with her bare fingertips without flinching. Turns out she had frostbite when she was younger and lost sensation in her fingertips as well, which was why she was able to do that. Pretty neat that in the long run it enabled her to do her job better.
Yikes!
That’s honestly a bit surprising. You’d think that even if she couldn’t feel the heat it would still leave a burn on her hand.
@@deltab9768 She would only hold or touch the metal components very briefly; As far as I know, at that temperature (that's in F, not C) it takes at least a solid second of contact to actually leave a burn.
@@deltab9768 If she has calluses on the fingers from doing that a lot that would prevent burns for a while
@@chri-k that's not that bad.
I know a quite similar EpiPen story.
During EMR training at out firefighter academy we were shown an EpiPen with a curled tip.
They used to hand expired EpiPens out to students, so that they could take a look at it and see a demenstration into a dummy.
All of this went fine for multiple years till one student played around to much and gave an unwilling demonstartion on its use.
He managed to inject his index finger with it, which caused the needle to bent into his finger bone.
He was promptly transported to the next hospital.
Since then all new firefighters undegoing EMR training get to see that bent EpiPen.
I work with pipetting robots, they are still quite expensive and/or have poor chemical resistance. One of the hardest parts of building process/production robotics as far as i have seen is keeping out vapors and other things that will destroy the needed delicate electronics. Like THF vapor will readily dissolve most plastics, so making one to handle Phenol would be rough I imagine. Still moving towards automated hazardous chemistry would be ideal!
Yes, use robots for dangerous tasks. If you know what chemicals the robot is expected to be exposed to, you can devise some protection specifically for that chemical. Like a coat of phenol or THF resistant varnish over sensitive components, or using some alternative material.
better yet dangerous chemisty with robotics would make for a good puzzle game to teach safety of those robotics
Here's another EpiPen-adjacent story for you. A very common local anesthetic for minor surgical procedures (like tooth extraction, or surgical removal of small tumors) is lidocaine and epinephrine. Lidocaine is the anesthetic, and epinephrine reduces bleeding by constricting the blood vessels. Due to some quirk of biochemistry, I personally metabolize lidocaine (and presumably other -caine alkaloids) very rapidly, but epinephrine more-slowly than normal.
What this means in practice, is an oral surgeon running out of prepared injection solution, and having me just tough out the last 15 minutes of a root canal, or having a surgeon tell me that they "can't" give me any more local anesthetic, because my BP/heart rate is too high, and just finishing up with cauterizing my wound and sewing me up with no effective pain relief. Also, I'm an absolute *wreck* after any of these procedures, because of the residual jitters and racing heart.
I've got a note in my medical chart about this now - we'll see if they actually do anything about it the next time I need something done.
This is a bit of an old comment, but my husband gets a very similar reaction. He now declines any numbing at all at the dentist because the after-effects are worse for him than the procedure. Admittedly, the only root canal he had was after the nerve in the tooth died, though (doctor wanted to see if inflammation will resolve by itself after removing a badly done filling left by a previous doctor. He was supposed to come back if it hurts too much. Apparently "too much" is a rather imprecise way to word things).
"HPI" (high pressure injection) injuries are absolutely terrifying. They force large quantities of usually toxic things into someone's body under extreme pressure almost instantaneously. Meaning you have the physical trauma of what is basically like getting shot, the physical trauma of the decompression (if the injected stuff is compressed), often temperature injuries, and on top of all that the toxicity.
And the worst part is often feels like a barely noticeable pinprick at first. Someone might think they just pinched their fingertip when in reality they've already lost that arm and now have minutes left to live without immediate emergency care.
Speaking of liquid injection injury, friend from uni worked doing industrial pressure washing. Their machines ran more like 15000PSI than the 2-3000 you get in the home machines. They were doing some work inside a large tank. Hanging from ropes to do it. They were doing sandblasting and were feeding the mixed sand and water at 15K PSI to the hosed. The guy he was with had a fitting burst near his shoulder and it injected his shoulder to the size of a softball with the sand and water mix. I'm not sure how it turned out, but with sand being injected deep into tissue around a joint like that I can't imagine it ended well.
😔
Highpreasure liquids thru small openings is... intresting! Owerheated steam in boilers acts the same, but is invisible. You hear the leak by the noice and you see it only some way off where it condenses! If you want to find the leak itself, use a broomhandle and wave it in front of you, when the handle gets choped off you have found the leak! 😉
Also, the stories about hydraulic fluid leaks are true. When I had my grass-cutting business, the mowers I used had hydraulic pumps and motors to drive the wheels. The instruction manuals warned of high-pressure leaks from the hoses.
I've read horrifying accounts of the surgical removal of hydraulic fluid and damaged tissue. It's definitely real.
my tractors manuals in the farm are full of warnings too. Pretty sure the combines are even worse, as they even have hydraulics driven wheels, but I do not operate these. may be only higher flow though, not very high pressure, I never chacked.
My father is an HVAC technician, and on one job he took me on, he had to replace a pipe in a hospital's liquid oxygen plant. I don't remember much because it was such a long time ago snd I was just a kid, but I did vividly remember him using this chemical jacket to run an endothermic reaction that made dry ice, in order to cool the pipe so he could cut it easier (since you can't just use an acetylene torch to cut it due to the 100% oxygen atmosphere on the inside of the pipe).
When he was done, he set the dry ice outside in the sun to sublimate, and when he saw my interest in it, he gave me a pair of thick leather gloves so that I could play with it safely. I've been fascinated with cryogenics ever since.
If I were to go back to school, that would probably be one of the areas I'd be most interested in, though I'm not sure how much research is being done into cryogenics these days.
My high school has a permanently closed (probably locked) door labeled cryogenics. It's probably a joke since the door to the boiler room is labeled "Time Travel Stuff" and a staff meeting room is labeled "Holodeck A" but there's no way of making sure until you see what the room really contains...
@@word6344 which room is the alien autopsy room?
(I had that sticker , and kept it on a built-in refrigerator door)
@@petevenuti7355 that's just whenever a bio lab happens
There are a few issues with these stories and your commentary regarding the stories. In order of appearance, ethyl chloride is still used as a topical anesthetic. It is less used now than it had been previously, in part due to cost (it is commonly supplied as a pressurized glass bottle, due solely to the vapor pressure of the compound, and must be packaged and shipped as potentially hazardous for obvious reasons and the compound's flammability if it is released in transit). Usually it is used for an injection or other very brief but painful procedure in a particularly fearful patient or, rarely, for placement of an intravenous catheter. A few mL are sprayed over an area and the rapid evaporation freezes the most superficial tissues, causing a very temporary anesthesia. No, we don't do this in a fume hood or negative pressure room. Just a normal hospital examination room with normal hospital ventilation (which typically exceeds the air changes per hour of residential HVAC systems and most other non-medical businesses). The patient and room do not need any particular decontamination from its use. In the hands of someone competent, there is very little risk. With that said, I have seen deep frostbite as a result of a professional being too enthusiastic with their spraying, and I have heard from colleagues who have seen worse. In particular, people doing stupid things with cautery while using ethyl chloride or spraying the area way, way too long. The first can cause a big fireball and the second can cause an impressive amount of tissue death. These egregious iatrogenic injuries are exceptionally rare. The amount of ethyl chloride that anyone is exposed to in medical care is so negligible that your mention of carcinogenesis is pure and unadulterated fearmongering. Although it is a known animal carcinogen there is no evidence that it is a human carcinogen, and there are plenty of other very routine medical interventions with a very real human carcinogenic potential that exceeds this theoretical risk by orders of magnitude.
Regarding the epinephrine autoinjectors, I have treated many injuries from inappropriate injection. In one case a person intentionally injected their assailant, which was probably not the brightest idea to administer additional "fight or flight" hormone to someone actively committing battery. The biggest concern is when people inject into a digit, as concentrated epinephrine into a finger can cause enough vasoconstriction to impair circulation. This means ischemia, which can be very painful, or in the worst case infarction/ necrosis (death) of the tissues. Sending someone to an emergency department for evaluation after any epinephrine autoinjector use, whether such use was medically necessary or not, would be prudent. This does not mean that every case, or even most cases, will be serious but it takes a proper history and examination to sort the serious from the rest. In 20 years as a physician the overwhelming majority of such patients, even those who correctly used the epinephrine autoinjector for a potentially life-threatening allergic reaction, were able to be treated and safely discharged home. With regards to using someone else's autoinjector, these are single-use needles. Before discharge the needle should be clean, unless someone was not storing the device in the included clear plastic tube. After use they have a bright orange safety shield that covers the needle to prevent accidental injuries. Your comment about using someone else's autoinjector, again, is fearmongering. A device that has been used is fully discharged and is incapable of injecting anyone else.
In short, many of the items that you seem to think are a big deal are relatively minor emergencies. The high-pressure injection, however, is a significant emergency until proven otherwise. As a water jet is capable of cutting hardened steel, it most certainly can cut through any part of the human body. The trauma can be challenging to evaluate, as the entrance wound is typically very small but the damage can be very deep. Too much liquid in certain areas can cause a compartment syndrome, which is a condition that requires immediate surgery. The liquid that was injected could itself be toxic to the tissues. Of all of the issues I have seen with high-pressure hydraulic injection, infection tends to be very uncommon as an immediate concern compared to the prior mentioned direct complications, although those complications can vastly increase the risk of infection developing later. Most human pathogens don't survive too well in hydraulic oil, which has been the majority of injuries I have treated, but an aqueous solution would definitely make me more concerned for development of an infection as an immediate result of the injury. After all, nobody runs sterile water through their pressure washer or water jet cutter.
These are valid points, and I appreciate your input (I will pin your comment).
The used epipen injection had injected both the sister and the mother, no? In that story the mother was disposing of the *used* needles from her daughter (OP's sister), and was still accidentally injected. She also experienced symptoms which sound similar to someone who was injected with epinephrine, which suggests some amount of the drug did inject a second person.
Now that's a thorough comment.
My daughter needs to carry an EpiPen, over 20 years ago they did not come in a plastic case or have a safety feature for deployed needles. I made my own carry case from some electrical conduit and test tube stoppers, it just seemed too likely to be dangerous otherwise . Also If you held them to long one could end up inflated with a bubble of the n2 propellant, at least that's what I was told it was. It was also a wide bore needle, seemed like it could hold 0.01ml by itself .
I've never been stuck with the newer design so I don't know if those last two points are still possible.
"Your comment about using someone else's autoinjector, again, is fearmongering." - So injecting the contents of autoinjectors that have not been prescribed to you (and that there is no medical reason for you to use) is nothing to worry about, and claiming that one would be concerned about it is fearmongering? Let's agree to disagree on that one.
@@That_Chemist I would recommend looking at images online of the EpiPen units. That orange tip extends immediately once the unit has been deployed and it fully covers the needle. It sounds like this person was disposing of an expired, unused device. That would be the only way to get stuck, short of forcefully disassembling a used device. I have never seen one fail to sheath the needle except for extremely rare occurrences of improper use, such as attempting to discharge it into a solid object. That will easily bend the needle and prevent the sheath from extending.
Perhaps telling the kid to leave it alone and just let it sublimate would have been smarter.
Or just chuck/kick it into a corner so you have more time to defend it from a children. Minimize touch time and keep away from tiny humans.
Telling a kid to leave something alone is only ever an extra incentive for them to touch it!
@@CoolAsFreya if there’s enough fear in your voice that won’t be the case
@CoolAsFreya All we need is a bit of reverse psychology
This has probably already been said, but I didn't find it on the first page, so... When searching for the source of a high-pressure leak, the standard method is to put a rag on a stick, and use that to probe around for the leak. When the rag is observed to be magically slicing in twain by an unseen force, you know where in space the invisible beam of death is passing. From there, you will generally be able to tell where its coming from, and then you can shut down the equipment, test again to make sure there is no residual cutting action, and make your repairs.
The 'teach a man to fish' adaptation is great. Terrible, but great.
Hydraulic pressure is scary stuff! I remember hearing a story about an oil rigger who was working on an oil rig in Canada with US and Canadian QD hydraulic 4+" diameter hoses. The two QD hoses connected, but weren't supposed to. He went to break the connection and was un-lived by the blast of hydraulic pressure. I've heard many stories of people needing to get amputations from hydraulic leaks as well. It's certainly not something to mess around with.
The rate at which you are able to crank these out is lowkey scary
I’m not as efficient as I could be - but I’m getting better at prioritizing
@@That_Chemist I think it's the fact that there's enough dangerous incidents to make 25 of these chempilations in 2 months that's terrifying.
how? he just reads other people's posts and provides 5 seconds of usually meaningless commentary. "oh that sounds really bad" sort of insightful stuff. I'm sure that takes him so much effort to produce.
I've known a couple of people who tried to get high using epipens. Apparently it's extremely uncomfortable and has a tendency to induce panic attacks. Who woulda thought...
as someone who used to need one they may be life saving but damn if i didnt wish i just took some benadril and slept off the discomfort. the pain from the injection combined with the gutpunch and almost sezurelike state due to it reacting like an amplifier for my ADHD was hell.
I'm pretty sure it is, literally, cheaper to buy cocaine.
water as a whole is pretty scary.
the fine jets is an example, but flashfloods and such can apply such a violent amount of unrelenting force it's absolutely insane.
Those scary stories about pinhole leaks in hydraulic lines are no joke. My old lab manager made all the lab assistants watch a slideshow of hydraulic injection injuries before going near that equipment, to be sure we wouldn't get too brave or stupid around them.
The description says this is the 24nd (sic) chempolation
man these new thumbnails for the past 2 weeks have been awesome! I miss the old thumbnails but the new thumbnails are just as awesome but in a different way!
yeah in retrospect this one isn't clearly a chemistry title/thumbnail tho - thanks tho :)
@@That_Chemist biology is just approximate chemistry ;)
/s
the h1 protein from influenza is called hemagglutinin, and aids the virus' ability to attach to and infect cells. on its own, it is not infectious. the name "H1N1" means that on the surface of the swine flu virus it has: type 1 hemagglutinin and type 1 neuraminidase. H5N1 would be type 5 hemagglutinin and type 1 neuraminidase, etc.
3:07 in theese amounts, everything can be dangerous. When in lab amounts it is pretty tame.
My instructors in Civil Defense once told our intake platoon a story about how a bunch of guys in Hazmat once teargassed themselves by accident. For training purposes, instructors get to use these tablets of very low concentration teargas to test how well the trainees have donned their hazmat suits, whoever starts crying obviously didn't get a proper seal on their PPE. Those guys from hazmat, for whatever reason, put multiple of these tablets at once into the system (they probably wanted to see what it was like to be affected by said tear gas), and discovered to their horror that activating that many tablets at once increased the concentration to full-strength tear gas (it's the same formula the local police use in cases of riot control). They ended up leaving the testing room half-laughing half-crying at their foolishness.
I wonder if it's the same stuff the US Army uses because in low concentrations the gas smells like brownies.
@@dejjal8683 I dunno, can't remember if Singapore gets our tear gas formula from the Americans.
As far as high pressure leaks go. At the refinery we had a 40” high pressure steam line coming right off of the boiler house at ground level. In order to walk into the boiler house you had to walk right along side of that header pipe for about 50’. At each end of the walkway was a trash can with a couple of push brooms in them. The idea was, that before everyone in your party walked down that walkway someone was to take a broom and run it down the pipe! If the bristles suddenly flew off, or the broom got cut in half you knew there was a leak and had to call in the Safety Department immediately……
jesus christ
@@user-mn8lz7gf6d Safety Department would run out there and put up some of that “magic” yellow tape and you’d be safe again. 8’ icicle hanging from a 10 story unit, yellow tape! Asbestos pipe insulation fell off, yellow tape! H2S leak, yellow tape will save you! LoL!
@@Dingomush the yellow tape doing gods work. god bless.🙌
I have a kind of funny story. When I was in high school in a chemistry class, our teacher was demonstrating something about gas laws ( I don’t remember what now ) with a set of very old brass balls that were pressure sealed to each other with a metal pipe. This thing had to be at least 50 years old, It has a pressure meter on one side. Long story short, one of the students fainted during a demonstration where one side was placed under a Bunsen burner and as a result it was left on while that student was being attended to. To no one’s surprise, the pressure built up so much that one of the balls exploded off with a sound I can only describe as cataclysmic. The ball wedged itself half way into the wall.
The last lines were hilarious.....this reminds me of my friend who used to say same stuffs before doing terrible things in lab. And in addition to it, he did it often. He used to flaunt his knowledge of chemicals in front of juniors, and attributed himself as "expert" in it 🤣.....but his consistent bad luck of shattering glassware strikes most of the times and that gave him the title of
"Chem exfart" in the school 🤣😭
The words lab instructors have come to fear me saying are "eh, that's probably fine".
Talking about injection accidents: vidal S (2020). Safety First: A Recent Case of a Dichloromethane Injection Injury. ACS Cent. Sci. 6(2): 83-86.
Yeah that paper was brutal one - the pictures are awful
Wait a second, so you're telling me that on Halloween I'm not supposed to put dry ice in my mouth, so that I can scare the kids when fog is released as I speak to them? ⊙.☉
oh god
A classmate in high school tried to eat a piece of strawberry that was dipped in LN2 and Crushed... He couldn't talk right for a few weeks afterwards...
couldn't you use dragon's breath candy?
regarding the phenol thing, it would have been a lot more sensible to get it delivered in a heated tanker, with no need for the plant operators to melt it
Yeah true
Railcar tanks filled with molten phenol bring to mind the movie "Unstoppable"
when I hear "this is ompletely not dangerous" I leave immedietly. there were several cases where at least I waas out of the blame radius this way
the dry ice story reminds me of a time I was working with liquid helium. We were pumping it out of a big dewer (it was over 5 ft tall) which required two students wearing protective gloves holding some steel (I think it was steel) pipes in place as the helium pumped out. As it turns out, sticking your hand too close to the mouth of the tank is a bad idea and "too close" is not as close as you think it is. Anyways the helium basically froze a hole into the glove on my right hand and I felt a cold prick and immediately pulled my hand away. It felt like a burn and I had a small patch of blistered skin. Needless to say I kept my hands well clear from any possible venting holes in cold dewers from then on.
There are old chemists. There are bold chemists. How many are old, bold chemists?
There was Max Gergel.
Was.
He died at the ripe old age of 96.
Re. high pressure jets: an ex-submariner told me the approved method of checking for leaks in the high pressure steam piping was to sweep around a broom handle. If a chunk suddenly got sliced off the end of the handle, you were getting close.
That steam was superheated (red hot) as well as at high pressure. The broom handle would burst into flames 🔥!!
2:25
Your camp story sounds very similar to mine. A good few years back I was at a week long camp in northern Wisconsin. The last day we were there we had to get up relativley early and get things packed up before heading down to the mess hall for breakfast and leave. Well that week was a rainy one to put it lightly. Heavy rain and storms all week with a couple short lived water spouts on the lake nearby too. Our rainfly didn't exist since my friend and I were using his tent that his sister forgot to pack the rainfly in after she used it. Being arrogant and "inventive" we fabricated one out of some smaller tent rainflies and duct tape. For the most part it wasnt bad... except one night when we had to bail to mess hall for a tornado warning. Came back to an inch of water in the tent. Now on the last morning I woke up with horrendous back pain. Couldn't sit comfortably let alone stand upright with stretching making me almost pass out. I had to ride in the truck down to camp instead of walking with my troop. I couldn't eat and slept heavy the car ride home.
The problem is, thats not where things ended. I got a heavy fever for a day then woke up the following morning with spots covering my whole body without fever, itching, pain, etc. I felt normal sans the obviously weird spots. Went to primary care doc and she referred me to a dermatologist who basically had no clue what it was either. Told me to take oatmeal baths and see if it does anything and report back. Took two weeks for it to disappear but the oatmeal baths helped-ish.
8:55 I also heard a story of a guy who was operating a tractor with a hydraulic lifter when a hydraulic tube burst and shot a jet of oil into his leg. They tried to get most of the oil out of the wound at the ER using sponges but eventually the leg still got inflamed and had to be amputated.
Yikes!
About the ethyl chloride: yep, it is like ether, it knocks people unconscious but it is safe enough to be used as anesthesia. IIRC most general anesthesia are haloethanes so ethyl chloride might be used sometimes, i would guess it's also alkylating like methyl iodide, but possibly slightly less.
We were converting stilbene dibromide to diphenylacetylene, and about halfway through the lab, one of the reflux setups began to rapidly turn dark orange and leak out weird orange vapor. One of the students mistook the chloric acid for HCl and used it in the reflux, and instead of freeing the bromine as bromide ions in solution, it created free bromine gas. Great stuff.
the waterjet stuff at the end are borderline jojos bizarre adventure type magic
Another tale for the brewery, that happend last friday. A apprentice was told to clean two storage tanks super fast, because he came in over 4 hours late and on friday we only work 6 hours. Since I became a journeyman recently I had to have a look over him and metaphorically kick his ass, if he is too slow. He is late a lot and he is "ill" a lot, also he has skipped school every time so far, so I don't know, why he hasn't been kicked out already. Anyway, we clean the storage tanks manually with a cleaning solution containing sodiumhypochloride, potassiumhypochloride and potassiumhydroxide. Because in the first tank he cleaned the emaile coating is damaged at many places the surface is rough and throws many tiny drops of solution in the air. When he went in I was cleaning the pressure velve of the tank so I didn't see him. When he was done inside and came out I noticed that he didn't wore any goggels. When I asked him why he didn't put on gis goggels, he said "I don't need them". I was really shocked by his stupidity and tried to explain the dangers of the chemicals in the solution, wich, by the way, was way too concentrated. After I explained it to him, he still refused to wear his goggels. Just a second later the beam of water from the hose hit the edge oft the tanks and sprayed water all over him including in his eyes. Luckily there was no chemical on the edge. After explaining the dangers again and telling him how fast getting it into your eyes can happen he finally put on his goggels.
I used to hold dry ice all the time when I wad a kid, just juggled it, I wonder if they actually held it, like hard.
3:50 It’s weird that they don’t have tank heating coils for this. On a ship, you’d just have a bunch of steam pipes built into the bottom of the cargo tank so you could just use steam heat to melt all of the cargo.
My dad had a very similar story to the first epi pen story. My sister is allergic to peanuts, and he grabbed Ed real one and stabbed himself
Today's yikes awardee reminds me of when my HS chem teacher would fill a bowl with soapy water, and bubble butane through it. She would then let us scoop it up with our hands, and then light it, making a nice fireball.
It caused a lots of pin like pain not pleasant experience. Caused by a insect bite.
Finally I have a relevant story
This comes from my EMT instructor
He had a class and passed around an epipen. He warned the students multiple times that this was an actual epipen and not to take off the safety cap. Sure enough as it’s getting passed around, someone in the back of the class took off the safety cap and stabbed themself through the finger.
We use dummy pens now
At my current job a test to accelerate aging og experimental membranes using 4 molar NaOH did suffer an unexpected end. The engineer opening the oven found that the tray placed to catch posible leaks was filled with liquid. Soon alter he saw a hole in the borosilicate bottle. As the glass was eaten away and the top was standing on a paper thin layer.
Lesson learned hot hydroxide solutions are bad for glass.
Epi-pen user here: I've had to use one a couple times, and I can say it isn't fun, but it is... fascinating.
Among other things, it made me VERY BRAVE [like, feeling I could do anything] and also completely giddy. it also made all of my muscles fire non-stop for like an hour or two [I couldn't exactly keep time] -- kinda made me realize I definitely do have anxiety all the time, because it got rid of everything else.
Would definitely not recommend people do this though unless you actually have an allergic reaction or other reason to use epi. it's very unpleasant overall... one time I nearly broke my brother's hand [tbf, he asked for it. 'how strong is your handshake now? well let's see...] My cousin, a lumberjack tried as well, and we were evenly matched. We shook until it wore off.. I don't know how long that was, but maybe like 5-10m, though everything else was still firing for a good deal longer. too bad the god-tier strength enhancement doesn't last too long.
5:36 For a second I thought you are having a stroke while reading 'Karlsruhe'
Always a nice time hearing someone butchering german xD
At least he tried?
I could have tried harder - I am not in practice lol
I remember back in middle school we were learning a little bit of early chemistry and the teacher was talking about what "alcohol" means, that it meant an OH on one point on the molecule. He showed a couple different alcohols and their structures, including phenol after talking about the struggle to figure out its structure. He said that if he stuck his hand in a bucket full of phenol he's be dead within the hour.
i had a cylinder of co2 until my moon mist and squirt bottles cracked :(
I didn't know, that dry ice is that dangerous.
I've worked with that stuff daily and no protection. Carring dry ice pelets in a plastikbox (and using a metall scoop without gloves), jugling with bare hands and in summer, just open the big boxes to get a short cool breeze. Colegues even put one ore two pellets in their pockets and called it "Personal AC".
Now i think, that was a littlte bit yikes.
you can be fast but not every part of your body can send you feedback quickly enough - its better to handle it with insulated gloves
I'm almost certain you've told that same phenol story before...
I witnessed the opposite of a laboratory accident once: we had a chemist-turned-system-administrator in university that used to make mixes of vodka and honey for parties and store them in used (and rinsed) 1-litre bottles of 1-normal HCl. He would then store these bottles in the chemicals refrigerator because he was too lazy to walk all the 20 m to the one provided for food. One day, he didn't find one of the bottles. Nobody got hurt but, somewhere out there, a chemist was trying to titrate a solution with vodka.
what circle of hell have i just walked into, i was watching cake baking life hacks
😂
so you too are a fireballtool fan! wow thats amazing to hear, yeah he truly does some great stuff!!!
yeah I don't super actively watch his stuff, but he is a really impressive creator
0:09
wtf? no way dry ice does that! I've held chunks of it in my hand for the better part of 2 minutes and all I had to do was move it around a little bit so it wasn't on the same exact spot too long!
This sounds like a song title
Liquid nitrogen was common enough where I worked that we could get it easily, but uncommon enough that we had fun playing with it.
I once froze a piece of banana, but when I tried to eat it, it froze off a significant portion of the inside of my cheek. It took a long time to heal, and I can still feel the scars.
I'm intrigued by the "dry ice blasters" that are used to clean/degrease stuff... the idea that you're not using *solvent*, so the muck that gets blasted off can be cleaned up more easily... also for situations where electronics are involved (e.g. and car engine), you don't have to worry about water damage.
damn I just clicked on your channel and you uploaded smth
timely!
indeed
I thought this was for nurses or something. I forgot that rich people can afford EpiPens, even after the government created an illegal monopoly.
When i was a kid (about 4) i went to a shop with my parents that had a big box full of dry ice at the counter, i was used to eating lots of water ice on prawn trawlers and had no idea what dry ice even was so i grabbed a pellet which instantly stuck to my fingers and to get it off i stuck it straight in my mouth.. it instantly stuck to my tongue and burned so i had to just rip it out along with a chunk of my tongue that was frozen to it, luckily I was left with no permanent injury and the missing chuck of my tongue grew back in a few months.. dry ice on finders meh, dry ice in the mouth fecking ouch
Fireball tool is actually from my hometown
cool :)
@@That_Chemist he does awesome stuff. Abom79 is another great machinist if you like that kind of thing. He’s Floridian
Also, by older audience, I'm guessing he means not highschool/undergrad. There's a pretty strong metalworking cluster within the broader Makertube, with Fireball sitting alongside legends like This Old Tony and Blondiehacks. There are TOT viewers who started watching in their teens and have finished college and become professional engineers and machinists.
Meanwhile in my mid-30s I still want to buy (and learn to use) a welder (probably TIG), lathe, and mill. Got a house with outbuildings last year, so I've sorted out one of the spaces to be my bike workshop/storeroom and am waiting for migrating birds to leave before I fit full height doors to the next space and start fitting better lighting and power.
Nailed the Karlsruhe
I feel like it was a 6/10 delivery
H1N1 and stuff are just referring to the proteins on the surface of the virus. So the protein H1 itself isn't specifically a problem. Honestly the procedure describes for that lab sounds like the type of procedure that should be in place for handling all dangerous biological agents but unfortunately it's not always possible to limit human hands to safe work...
One time in my undergrad I left my apartment as usual to go to my chemistry lab, which was bit more than a mile away, but in a dumb lapse of attention I did not realize I was wearing shorts instead of pants until I was right outside the lab room. Fortunately I had built a good rapport with my TA in previous quarters and it was supposed to be a two day lab, so they would allow me to run back to my apartment to get changed. Needless to say I probably set a personal best mile time both ways. Here's the real kicker though. As I returned, huffing and puffing and dripping with sweat, I saw that my entire class was waiting outside the building for some reason. The TA then told me that soon after I left someone accidentally made a bunch of hydrogen sulfide and they had to evacuate the room until it could be fully vented. Which then took at least half an hour more. Since the incident happened at the start of the lab I was no more set back than most anyone else. So in the end, even though I made a dumb mistake, another person's dumb mistake basically made it so the only real consequence for me was some strenuous surprise exercise.
This channel will be big one day.
Thank you :)
Diesel injection lines need careful handling for the same reason. Injection injuries are awful.
1:00 My question is: can you snort the dry ice bricks? /j
Plz no
I was taught at the mill I worked at that even a small superheated steam leak (1300 psig, 700+ degF) can cut off your finger without hesitation. I never had interest in testing this for myself…
The needle stories reminded me that I have to do a blood draw in a few weeks.
Re: the dry ice burn one, if anybody watches the content creator Tomato/Tomato Gaming, he apparently is missing feeling in part of I believe his left foot because someone spilled liquid nitrogen on it when he was a child. Wild stuff
Dry ice isn't harmless but it's not insta-frostbite as it's sometimes portrayed (YTer wbeaty has a video showing what you can get away with and what you can't, though I wish he was wearing goggles). I've handled plenty of it without gloves... if you keep it moving it just feels cool, and it only starts nipping at you after staying in one place for a second or two, or if you apply considerable pressure. Even then, the instinct is to drop it. So I'm surprised to hear about apparent long-term nerve damage (without any mention of more superficial frostbite signs!) from momentary contact with a small piece.
my favorite funfact about the epipen is that it's literally just adrenaline, that's why the heart goes crazy,you'd likely be calmer on meth and caffeine.
military uses them for severe trauma and such, nothing else gets the body ready for action like adrenaline, same chemical responsible for incidents like women tearing through car panels with bare hands,not feeling pain, not thinking pain,just one objective,save the child.
"H1" and "N1" are varieties of surface proteins that can be on the flu virus. There's actually some very mild H1N1 flus, but that combination has a bad reputation because the 1918 Spanish flu had it.
How do you pronounce Karlsruhe with perfect pronunciation but say phenol like that 😭
probably aluminum and aluminium case there ;)
Because Phenol has to sound distinct from Phenyl and Fennel
She was only injected with (H) hemaglutanin with out the (N) noramineadase. The virus needs both to enter our cells and replicate.
Amateur... I've put my hand in liquid nitrogen... in a foam container (just make sure there's nothing metal to touch... leidenfrost effect for the win!
I had swine flu in June this year - it is worse than Covid! at least for me :(
Why the hell would they be using sharps on their syringes?? I can't imagine it's necessary for the chemistry and blunt tips would eliminate ALL risk of accidentally (or intentionally!) self-injecting...
Question unrelated: have you worked with 1-bromo-2-fluorobenzene to perform a Grignard reaction and not have it react to itself to form a benzyne? And how do you combat this? A protecting group, temperature, a certain solvent?
Whenever i buy dry ice for kitchen use it comes in bricks, are the large chunks like a US standard or just an industry thing? (high density=cheaper to store and ship in large amounts)
This is my first time hearing that dry ice is dangerous and I have a bachelor's degree in a STEM field lol. I remember my parents got it for me and my brother to goof around with once because I'm pretty sure they just sold it at the grocery store... I was like 6 and my brother would have been 11.
asphyxiation is a risk (CO2 levels can also rise, which is bad for indoor air quality), frostbite is a risk, and if people are sealing it in a container that can cause an explosion risk!
Did anyone know about the mercury glovebox? I am super curious
Not that I saw, although this video never got too many views
Are these made with dalle?
Yep! I mention in the description of every video that uses AI
I'm on the same page as you, needles make me squirm 🤢
@Viewer oh jheez I'm sorry to hear that. I just fear them and look away whenever I get one or see them.
I had 45 shots over the span of 11 days when I was in the hospital, I was good for a few years afterwards. Now I'm back to getting squirmish when I see them.
Something about puncturing makes me squirm. Even hearing or thinking about any puncture related injury makes me squirm. 😅
The only time I didn't mind being injected with a needle was when I was getting a blood test done by this gorgeous (I think maybe Russian, I don't know exactly) nurse. She was smoking hot lol.
Impressive pronunciation of Karlsruhe! You must be Canadian or something 😋
Causing permanent damage to yourself to stop a kid touching it. Silly.
Kids aren't stupid, they might touch it for a bit, it'll get uncomfortable and they'll drop it.
Say "don't touch that" and they either won't, or they'll learn a valuable lesson about following instructions.
Speaking of dropping it, why wouldn't the person who picked it up.
The dry ice story : I would have kept the kid away and crushed that dry ice with my shoe. NO direct contact with the skin, and gone in moments.
EpiPens contain a good dose of adrenaline as well as antihistamines. The adrenaline can be a life saver when having a sever allergic reaction, but, to much can be pretty dangerous, even deadly.
High pressure water jets are used to cut through the hardest alloys and stones. It can cleanly cut materials that can't be readily cut using other means or without shattering. So, you skin and bones have no hope to resist that.
as AvE says - the softest material in a shop is your flesh.
My only comment on the H1N1 story is that if she were working with something live/biological matter like that, she likely didn't acquire an infectious dose, if i understand the story right.
I call bullshit on the ethanol / conc. HCl story
Meh hardly ever had a problem with dry ice. its a game of hot potato. pretty easy
“Who’s got the lasting frostbite”
@@That_Chemist just gotta know the danger and literally play hot potato. maybe with an egg sized piece at most. havent gotten frostbite at all from it. that said still better to have gloves yet with the leidenfrost effect being a thing you can do a bunch of stuff without if need be
ofc this does not apply if you combine it with acetone x .x
That last post is why superstitions exist. You never tempt God/fate/the lab demons/the chemical by saying things like "nothing can go wrong", lol. Stay humble!
Welcome back it's that chemist who talks more shit than he does chemistry.
Swine flu sucks
I thought I was smart, but I guess chemicals aren't my thing, these comment made me realise that. maybe I'll stick to physics and astronomy 😂
It’s good to branch out!