To the hydrog guy: the solution to your problem is not adding your Pd/C as a suspension in MeOH (believe me I've had fires making those up), but to use a different solvent. MeOH should be your absolute last resort, especially in industry. Even switching to EtOH is much, much safer. Or, make up your Pd/C suspension (using 50% wet Pd/C, fuck using dry stuff), with 50/50 MeOH/water if you absolutely have to use MeOH as some water is unlikely to hurt. Edit: I see TC beat me to it.
Well damn, my first job in industry always used MeOH as the solvent for Pd and nickel catalysts. It was always a bit sketch to me, and it's good to know that there were other better solvents out there that could've reduced the fire risks 🙄
@@AnAcceptedName it's not just your old company, it's really common to see MeOH used as a hydrog solvent everywhere because it works really well. Alas, a lot of people either don't realise or just ignore the safety benefits of switching to something like EtOH.
The text is hard to read. I’d like suggest for a vignette for a darkened text background for readability. Like a rounded rectangle blurred so the white text is readable. Some of your image choices are uncomfortable to read the text over.
Absolutely adore the FTL soundtrack. It really adds a relaxing ambiance and delightful contrast to stories of dinguses in a chem lab accidentally violating the Geneva conventions.
as soon as I heard the first note when I started the video, i had to check the description because I knew i recognized that beautiful Ben Prunty masterpiece
Fun Fact: handling green tobacco (ie: any part of the plant before it's dried) can make you suuuuuper sick, particularly if your previous nicotine exposure is limited/non-existent. In addition to being able to absorb through the skin, it's also basically impossible to wash off with normal soap and water.
Tobacco is honestly really cool. Aside from its lovely flowers and *amazing* scent (and it being an important sacred plant), it’s got some crazy genetics that have led to a number of medical breakthroughs. It gets used for biosynthesis of complex molecules-the vaccine for Ebola, as an example, was got by using tobacco plants to produce the relevant proteins & deposit them on its leaves like it normally does nicotine.
I was working in an entomology lab and I was cleaning sharpie marker off our plastic tube lids, and various other things, that we normally housed our parasitic wasps in. Once the wasps die we always clean them and reuse them. This time I was given 99% ethanol to clean it off and just went in barehanded to clean them off. Took me about an hour to clean everything I needed then I stepped back and realized "wait I'm hammered right now" and grabbed the MSDS and lo and behold ethanol can absorb through your skin especially when in constant contact. Luckily it was mid day and I sobered up before the end of the day and no one ever knew.
The FTL soundtrack is nice but I'd really prefer if the backgrounds weren't distracting as much from the text the images here make it a bit harder to read the text overall
A friend of mine worked at a nickel refining plant in the summers. They were one of the few companies in the country allowed to ask applicants if they use any kind of tobacco product and turn them down if they say yes. Otherwise, the cancer risk tends toward unity.
@@MushookieMan Norway. It's very limited what personal matters you can ask about in interviews. Nothing health related in particular unless it's especially important for whether or not you can do the job, like in this case.
Interesting! I would assume that since they are doctors, they would be constantly teaching the hospital staff chemistry, but perhaps that is naive of me
@@That_Chemist maybe it's housekeeping staff or other staff role that doesn't necessarily require a medical degree? I can't imagine chemistry being left out of medical school curriculum though it's essential to understanding how hormones neurotransmitters and any biochemical reactions in the human body works
@@That_Chemist I worked in an ER. There's a huge problem with PPE complacency when handling non-medical/biological hazards. Heck, sometimes even if it's a medical or biological hazard, they'll just wear gloves and ignore the fact that you can still breath in bad stuff. It took exactly one surprise Scabies patient for my ER to get *really* good at wearing PPE. She came in for high blood pressure. She didn't want to tell us about her itchy rash because she was embarrassed about it. We're lucky there wasn't a huge outbreak at the hospital, because scabies requires special levels of PPE to prevent infection. That was a bad day.
Housekeeping role, so they Donny have any interaction or training with the doctors. The senior leaders know some of what they’re doing, but the people in charge the rest of the time didn’t know how to change and test the chemicals properly. None of them did anything about respiratory PPE and it was becoming sensitizing for my wife to work around it. My wife has the equivalent of an associates in chemistry from overseas but it was her first job here while learning the language and she was appalled by the lack of attention to detail. That’s how things like antibiotic resistant staphylococcus aureus infections spread - the people doing the cleaning aren’t trained or paid enough to really be properly trained.
Speaking of HF, my lab's Swagelok sales rep told us a story about one of his customers who used it. They would buy a big tank of HF stored outside, fill up buckets from a spigot, and hand-carry the open buckets without any PPE. The sales rep refused to sell them anything until they fixed that.
That's nuts. I worked in a lab that used litres of anhydrous HF at a time (literally) and any time we went near it we had to be fully decked out in safety gear, and if it wasn't in a fume hood (pressure vessels) then we would be wearing a hood connected to an air line. You could not get me to use even a small amount of 70% Py(HF) without a lot of PPE.
I was actually working with HF a couple of days ago. Note - I am not a chemist. I have an A level in chemistry, and that's it. Nor was this insane homechem. No, this was a commercial rust stain remover where the active ingredient is 1-2% HF. I couldn't believe that this was actually a consumer product, but I was able to buy a ~500 ml bottle of the stuff and it was shipped like a regular parcel. The label does warn of the HF content and gives handling instructions, but consumers aren't known for their rigorous safety protocols. Now, I had the advantage of actually knowing what this stuff is, so I prepared accordingly. Safety glasses, face shield, double gloving - the works. Then I got to scrubbing the rust stain on my sink I was targeting with a sponge. Yeah, that stuff is pretty effective, it made a marked difference! So anyway, I finish up and bag up the sponge I'd been using and some paper towel I used to wipe around after in a plastic bin bag. Then I washed down my gloves before taking them off. HF away, job done. Then inspecting my sink and my finger made contact with a wet patch. It was where I'd put down the sponge before bagging it up. I washed it immediately and since more than 48 hours have passed since with no effects, I feel safe in saying I got away with it. This was a dilute product, and then further diluted by water in the sponge. But still, given HF's reputation, that was a brown trouser moment, despite the precautions I took.
Definitely prefer the style of previous Chempolations. The artistic backgrounds and different font in this one are very bad for the signal-to-noise ratio when trying to read things.
yeah we will always work to improve signal:noise - we are testing style changes first and we will work to make it even clearer to read, while making some artistic liberties (but know that I, much like you, see the pervasive importance of signal to noise)
@@That_Chemist I really appreciate you being receptive to feedback, I have dyslexia so this format is really hard for me to read and strains my eyes because idk where to look
My friends coworker is a clean freak and so he would usually wash his hands with distilled water which was kept by the sink. The water was kept in a large beaker that he would just pour on his hands. But one day someone left some chemical (I’m not a chemist but I believe it was a high concentration of sodium hydroxide) in a beaker next to the water . And as you can guess he used it to wash his hands. As he scrubbed his hands, his skin kept feeling slippery from what he thought was soap but as he continued to wash a coworker realized what was happening and stopped him. The slipperiness was actually the fat in his skin turning to soap and he had to be taken to the hospital. He kept his fingers but he washed his hands long enough to do a lot of damage.
WAIT THATS A STELLARIS BACKGROUND (I was just playing that game and turned this on as background noise, that’s a funny coincidence.) Anyway, this channel is really quite entertaining to me. Being a high school student, I don’t really have access to chemistry equipment, and before I ever get some, I think that knowing some of the dos and donts is probably a good idea. However, there is only so much I can really get out of just a list of instructions, so seeing what can go wrong specifically is quite nice. Have a good day anyone reading this
So I used to work for my polytechnic's laboratory for experiments, extra income and fun. My school is well known for its biological course thus it got quite a number of biological laboratories. During of one day during a microbiology class, the professor is conducting a lesson on gram staining. One for girl decided to flame sterilize a bottle containing 95% ethanol, as if it was bacteria growth media, this cause the container and her hand on fire and she started screaming and crying. At the same moment her boyfriend went to help,however he forgot his hand is covered in ethanol from hand sanitizer. Upon touching his girlfriend's hand (which is on fire) his hand caught fire too. Luckily, the professor took both of them to the emergency shower to put out the flame, while the other student use the fire extinguisher to put out the flame. We later now this as the Titanic fire incident or the flaming Romeo and Juliet incident.
All of these stories have one thing in common, the lack of respect for how dangerous a chemical or compound can be. Even if you think you fully understsnd something, you dont. Always respect any chemical or chemicals you are working with and understand they can all be inconsistent or volatile at any given moment.
I used to do purchasing for a major research department at UC Santa Barbara and should share some of the crazy stuff that happened in the Bio departments. Leaving cocaine unattended in unsecured labs, hoarding expired Ketaset, opening putracine outside of a fume hood...
14:47 VERY IMPORTANT NOTE about screwing around with plastic bottles and pressure... there are only a few sizes of blanks for blown PE bottles. A lot of the time, a smaller bottle with a common cap is a universal blank and the plant just blows a smaller mold. That means the smaller bottle is quite a bit thicker walled than larger ones. And thicker walls means more pressure can build before the container fails.... sometimes a LOT more pressure, and the shrapnel is thicker as well.
I have to assume it isn't a full-sized train (maybe narrow gauge?), since I don't think RTGs could put out enough power to move a train, unless it was rather light, like a passenger train, which...please no. To whoever's doing this: Just electrify it, okay...you can use nuclear power to run electric trains, like France does. Do. Not. Make. The train. Nuclear. I beg of you
I consume a lot of Juul pods and as a cheapskate and oxidizing acid enjoyer tend to collect the spent cartridges to extract the electrodes for the gold (money is fake but a screwdriver that can stir piranha without turning to rust would be sweet). Even empty pods handled carefully, with the tolerance from having emptied them and thick gloves will tend to get me into unwellness within 10 minutes of fiddling. I don't know if it's still the case but a lot of tobacco farms had a policy of only hiring smokers because without a tolerance to nicotine people would faint out in the fields from just picking leaves.
Restricted Chems [pesticides] Operator here. Nicotine is no joke. I use a nicotine-based pestocide for yearly systemic treatment of trees and bushes [Imidacloprid] and we use very little for an entire years worth of treatment for killing pests like aphids. The warning label has a warning one step higher than the broad-spectrum insecticide/bug spray I use to create pest perimeters even. Be careful with nicotine!
Me having my dinner while starting to watch a Chempilation Hears FTL ost ~instant neuron activation~ Thank you for this awesome video! The soundtrack worked really nice with the rest of the audio! And damn, I miss playing FTL. But I'm not that good at it, so yeaaaaah lol
Back in the day, one of my classmates got tricked into keeping snus (basically ground tobacco, this was the loose, strong stuff) in for a whole class on a dare. I don't think he ever used tobacco before. He turned pale, then green, then gray in the face. Then in the end, he had to run out and barf. This was all in about 20-30 minutes. Snus hits different. Also, me now trying to quit snus; using nicotine patches and snus at the same time...
Dude the FTL soundtrack made me feel the strongest sense of unknown nostalgia and I read the description and HOW DID I FORGET FTL!? Perfect type of music
I like the music but the backgrounds need work, i cant read the text at all and it overall distracts from the main visual aspect which is the story itself
Re: nickel allergy: I discovered I have that after getting my ears pierced as a teenager-took a while to realize that the itching wasn't just the usual irritation of a healing wound. I can't wear the vast majority of silver jewelry due to its nickel content. (Please hold the werewolf jokes, I've heard them already. If I can find gallium silver, that doesn't cause a reaction.) It even turned out that the fastener holding the tassel on my graduation mortarboard was some nickel-containing alloy and I ended up with a fingertip-width blister on my scalp. Nickel is such a cheap filler that I have to be really careful about any metal that's going to be in contact with my skin.
Omg same, I can only wear sterling silver rhodium medical grade steel and 14k/16k gold earring findings. I work with beaded jewelry so luckily I know how to replace the findings, every single piece I make to sell always uses hypoallergenic findings unless they're hard to come by(I usually disclose this on anything I put up for sale though)
Love these videos, and they remind me of some of the accidents that happened in my (although short) chemistry career. In 8 grade, my chem teacher thought it would be a cool experiment to put a little sodium in a plastic bucket of water. The way she did this, was by taking a large chunk of sodium out from the oil (about the size of a large hrape), and shaving a small bit in to the water. This time she dropped the whole chunk, yelled for us to duck, and then a series of explosions. Luckily she was very safety contius, and had us wearing goggles and standing back. My second little mishap happened in what equates to 11th grade in the US. We were to synthatize acetylsalicylic acid. After the synthatis was done, we were all left with a wet slurry. To dry it out, the teacher put it in a drying oven and set it to 40 degrees. We were to measure our products and calculate the yeald the week after, so it was left in over the weekend. Turns out my school had elementary schools students visit the days after we put the product to dry, and someone had messed with the temperature of the oven. I forget if it was set to 200c, or 400c, but it was apparently enough to let the the acetylsalicylic acid leave the oven in gas form. After it left the oven, it condensed back to solid, coating the wall and sealing in a white layer of something that resembled candyfloss or glass wool. Best part was that he made us clean it up and gather as much of it as possible, in the process aerosolizing the acetylsalicylic acid. Mind you no PPE outside of gloves. I am pretty sure we were breathing half of it in, as I could feel it irritating my nose. We still got a yield of 23%, presumably breathing the rest in. In my 12th year, a girl was searching for some chemical in the chemicals closet, and found a tub of white unlabeled powder. Now I have no idea why, but she decided to blow into it, causing her to be blasted in the face with the white powder. Next thing to happen was her screaming and panicking. Ran to the eye washer and began to wash her eyes. At this point we were sent out of the lab, and she was taken to the hospital via ambulance. Luckily she suffered no permanent damage. The mystery powder was never (to my knowledge) identified.
I also played with dry ice (from ice cream man), water, and bottle when I was in primary. I caused 2 "explosions" using 1 bottle. At first I didnt put enough dry ice to cause explosion. I picked the bottle. I opened the cap. The cap shot to the air with loud bang came from the bottle, almost as loud as when bottle exploded. My friends looked at me while I still holding the bottle. Then I put more dry ice to the same bottle, threw it, and watched it blew up from the distance
i think the same thing all the time. the most dangerous thing I ever did in 2 years of HS chemistry labs was make cobalt salt solutions to run through the little colorimeter for a beer's law lab. I've heard insane stories come from HS chemistry like evaporation labs where they had to time the evaporation of a mil or two of LIQUID BROMINE without a fume hood. fumes sink, someone bends down to pick up a pencil, evacuate the room.
I love your videos and this is a good one but I have a slight nitpick to make. I don't like the font in the messages because "O" can look like G. Making 150 mg look like 15g mg. Kinda confusing for a sec.
I had a fun incident involving NO2 once in a lab I managed. I was working alone with some copper nitrate waste from performing silver recovery, trying to grow some crystals at the same time. They're really pretty when they are done right, so naturally I was boiling down some of the diluted waste to eventually get a saturated solution. While the solution was hot, I decided I would try to filter out some of the insoluble crud using a large funnel and a Whatman No 1. So, I set it up on the floor by a benchtop and went into my office to catch up on some work on the computer. About 10 minutes pass and I noticed a faint orange tinge in the air just outside my office. Suspecting something might have gone wrong, I put on my respirator and ran out just in time to see my copper nitrate filter setup with large amounts of NO2 gas billowing off the top of the funnel I was using, all the way to the ceiling. I immediately opened the door to the outside of the building, placed a fan directed outside, closed all the doors to the lab and put caution tape and "respirator only" signs on the outside of the doors, just in case another employee was in the vicinity. Turns out, when pouring hot, concentrated copper nitrate solutions through combustable materials, they can spontaneously oxidize, emitting a fair bit of NO2 gas. Luckily nobody got hurt, but since then I have a much higher respect for oxidizing agents. Next time, I think I will just leave the solution to evaporate on its own and filter it beforehand 😅
Pretty mild in comparison but back in secondary school (high school for you Americans) we were doing electrolysis, I can't remember on what because it was several years ago now but I know we were meant to produce chlorine as one of the products of it. We followed the step-by-step instructions but it wasn't doing anything, we talked to the teacher about turning up the voltage and incrementally did that but it still didn't do anything. Then I suggested that maybe the instructions had it putting us in the wrong socket in the power packs. Plugged it into the DC one, in hindsight we probably should have reduced the voltage before doing this. It definitely began to bubble and produce chlorine, rapidly. About five seconds later we call the experiment a success, all like 10 pairs of us switch off our experiments, and open all the windows and corridor door and stand outside for about 15 minutes just to make sure we don't accidentally gas ourselves.
I had nitric acid at work about 23 years ago, to clean fiberglass resin off the tools in a fiberglass shop that made ventilation pipes for coal mines. I had no idea about nitric acid, I heard that one of our guys went to the ER with serious chemical burns on his hands. I asked my dad about it, he had some vague memories of it being really nasty stuff in his chemistry class in the late 1960s, so I just used more caution than I would with boiling water.
As an apprentice I once had an internship at a analytical lab of a chemical plant, which was in the building next to the unit where they produced hydrofluoric acid (at that plant a few people even died, of accidents with the concentrated HF back in the day when safety wasn't seen as too important and PPE was not as good as it is today). One day I got to come in later as I did not need to join the big meeting of all the staff of all labs. Sadly they discussed there that there was a test of the "gas alarm" happening that day, sadly no one remembered to pass that info on to me. So you could guess what happened when I was alone in the lab finishing some paperwork. I think I never heard a sound that put so much fear in me, and was already in the "save room" just about to tape up the seams of the door as the protocol called for, when finally one of the lab technicians ran into the room and cleared up the situation. For a moment I really thought I'm about to die😂😂
How did it absorb into your skin THROUGH your extra thick glove? I have worked with 100mg per ml nicotine and have had it directly on my skin and I just washed it off within a min and had no effects. I'm just wondering how it got through a glove
Regarding HF: I KNOW I am not ready to work with HF, and I have probably done more work with HF than almost all of the people looking at this. My first career was semiconductor development in a university environment, and the cavalier handling of aqueous HF, anhydrous HF, and anhydrous gas was truly frightening. HF, Methylene chloride, and benzine were handled like soda pop, with minimal concern for PPE, ventilation, or fume hoods. We actually only had one fume hood in the clean lab section (bunny suits and masks, class 10 lab, with class 1 work cells) Though, admittedly, not as scary as my then girlfriend who was a materials lab tech at Corning...
The text placed on top of images is almost unreadable. The font makes it even more difficult to read. IMHO the previous presentation was very good and didn't need any improvements. Love Chempilations though
Fun one from my bio lab last semester: We were working with sulfuric acid for a PH experiment. Kind of a scary chemical but being so far in college I figured everyone in the lab knew the basic rules, not goofing around, taking the chemicals seriously, all that. Well, these two kids were messing around the entire time, even when we were being instructed. So, when we all get our beakers with about 50mL of sulfuric acid each, I started getting a little nervous because they were still being obnoxious. Not even 10 min. into the experiment we all freeze on the spot when one of the aforementioned kids said, and I QUOTE: "Oh, we spilled our sulfur...stuff. Is that bad?" It wasn't just a litle bit, either. It was the ENTIRE BEAKER'S WORTH, and these two galaxy brain geniuses just sat there as sulfuric acid pooled on their desk. Thankfully, nobody was hurt, but given the fact these kids had to be STEM majors of some kind to even be in the class, it was definitely one of the most depressing lab days. I don't know where they are now, but I sincerley hope they changed their majors.
We are planning to, I was just busy with my PhD defense, but we should be posting them regularly again starting later this month or next month at the latest
Whoever said that Nicotine got nasty reputation of passing through the skin are right. I have experienced that firsthand so I learned to wash immediately after I get vape e-juice on my hand or anywhere so I don't get hit hard. Nicotine salts are much worse.
In my year 9 science class we had to burn a tiny amount of sulphur over a Bunsen burner on a point then put it in water and test the ph. The pair next to me did not listen to the part where we were told to use a tiny amount and burnt two whole spatulas of it. We were warned about sulphur dioxide. Me and my partner opened the window evacuated that area of the class and told the teacher. The pair were know for not caring. Some other incidents include spreading copper oxide across their area, pipetting (kinda dilute) sulphuric acid into a students pocket and tasting various chemicals
Here is a story of something i deeply regret.. In college I became hooked on the drug GBL, which is an insanely strong solvent. Drinking as much as 1.5ml in a personal sized soda bottle could actually "melt" off the part of your tounge that sensed spicyness, so it would work great for hot pepper eating competitions, etc. Anyways, my dentist looked horrified when she saw my teeth, after about a month of usage, and all I told her was "I have been drinking a solvent" and she looked at me like I was crazy. Now I am missing all the molars on my bottom jaw since they had to be pulled out. For this reason, I would NOT recommend anyone buys a bottle of GBL, or use it more than a handful of times. God only knows what it did to my stomach...
Dry ice can be very dangerous. A few per cent in the air can be lethal. It should always be in a ventilated are or outside. Everytime I see someone riding the elevator with a box of dry ice, I hope he doesn't die... Never ride an elevator with dry ice (or liquid nitrogen, but that at least only displaces the oxygen and isn't toxic like dry ice), put it in, press the button and take the stairs. Because if the elevator gets stuck, which does happen, you will pretty surely die in there...
In MRE (Meal Ready to Eat) there is a magnesium heater to warm your food. If you place that into a sealed container it has the same effect as the dry ice.
That dry ice bottle story is great. Yk what´s even funnier? Filling big plastic bottles only with dry ice (no water so it takes longer for pressure to build up) and burying them several feet underground. Wait a few minutes and kawoosh! Massive earth geyser.
Eh, that story of nicotine poisoning smells like BS. Dude's not vibrating in the corner because he dosed himself with concentrated nicotine like he took a hit of meth, he's going to be bent over wishing he wasn't so nauseous and had a rocking headache. Sorry to say it's wrong, but speaking from experience a nicotine OD is nothing like a stimulant OD.
Can't think of any major screw ups I made in the lab but I have a chemical incident story nonetheless. Sometime in my childhood I was having dental sealants put in to prevent cavities. The usual process involves painting on a small amount of 30%-50% concentrated phosphoric acid gel onto the crown of the tooth so that the sealant binds more readily when applied. For some ungodly reason the dentist decided it would be a good idea to repeatedly wipe his tools off on the corner of my mouth while doing the procedure. I ended up with a small red chemical burn that stung for weeks and was rough and discolored for months. Based off other horror stories I have heard of this, I got off easy.
If you started something that's gonna explode and ran away so it wouldn't explode in your face, don't approach it when it hasn't exploded yet and still might.
Shouldn't Juuls have a "poison" warning label? How much toxicity is it legal to put into a small package and sell to consumers without a warning label?
Probably because of big tobacco lobbying, as a Canadian it concerns me that the FDA is easily bought over by corporate lobbying. huge conflict of interest there.
Can you make a tier list of chemicals that both are considered medicine (drugs) _and_ an explosive? Like nitroglycerin, DNP, perchlorate, alcohol. There are probably more.
The dry ice bomb story: that's proof that the scariest thing that can happen with explosive is...nothing. I have made bombs like this with MRE heaters in the army, it has a mixture of metals (magnesium being one of them, I think, because they burn after you use them and dry them out, with a blinding, blue-white flame) and a water bottle. I've had a dud, but I knew by then (having trained with actual explosive like TNT and C4) if nothing happens, leave it alone. Boiling water sprayed everywhere in the best case scenario if it ruptures when you pick it up, can lead to serious burns.
Oh dear I am glad I am out of home chemistry for a good old while. I have this fairly dumb incident where I was trying to distill/concentrate some alchol in a sketch af setup. needless to say when I try to dissemble it it caught on fire and I am really glad that the concentration I got is probably marginal on explosive threshold and the container isn't sealed. A jet of flame shoot toward the ceiling at least for about a meter high but that is about it, I just let the rest burn out peacefully. Surprise that is not where my home chemistry ends. It ended after I accidently made too much chlorine gas. To be fair I intend to make some and I have read up on what I should use to nutralize any excess (NaOH solution iirc). Well for some reason (not that I can't identify but there is so much things wrong about a 10-ish year old making chlorine at home) there is a chlorine leak. when I realized I am smelling something caustic I basically open all window, tear down the generator and throw it into a NaOH bath I prepared. I suppose this kind of extinguished my love for chem so I am on a different path now, for good. Watching more qualified chemist doing it on youtube is a lot more fun and way safer. also while in the beginning my father was supervising me it didn't happen later. but to be honest he wasn't even that worried since he work in silicon fab which involed vats of HF and whole pipeline carrying SiH4 (which explodes in contact with air) both of which are like S+ on danger scale. they even have a shed specifically meant to store explosive shit and the walls are reinforced while the roof is intentionally weak, so if it blow up it shoot upward and not into other process equipment
I know this video is older, but I have a somewhat related story. Technically not chemistry, but science nonetheless. So in my physical science class, we have been learning about the periodic table. I’m really enjoying it, actually. My teacher is actually married to the chemistry teacher so she went over to his lab and took some samples of a few elements. All harmless, of course. Except for a bottle of mercury. Now all we’d really do was pass these around, look at it, and all that. Well, one day I go to class as normal, and I can tell that my teacher is kinda upset. She then proceeds to say that earlier that day someone had spilled the bottle of elemental mercury all over the table in the front of the room. Now, think about this for a moment. The mercury had a label on the front stating that it was (obviously) extremely toxic. And someone spilled it everywhere. What do you think they did? Tell someone? Clean it up? Well, no. They left it there. Yes you read that right. Someone left a puddle of mercury on the table and just left the room. I don’t know how long it was sitting there but still, holy shit. No one knows who spilled it, either.
@@That_Chemist sure, but it is specifically mentioned that the reaction was done in an rbf, and I don't think they wanted to get the flask to hold the 4000 mmHg or so of pressure to get DCM to boil at 373K
I usually read the text along with your speech coz English isn’t my first language. And I beg you not to use images as a background, as well as fancy fonts. Just screenshots of the discord messages were perfectly fine.
So I work in a vape shop and due to our municipality’s shitty laws, we’ve got to use nicotine additive to nic up the customers’ juices (off topic, kinda works in our favor in the long run cause we can now tailor the amount of nic for the customer instead of having to rely on the manufactuer’s concentrations). I never wear gloves, and one time I didn’t wash my hands after spilling some freebase nic on them one time, I spent the next hour in a cold sweat with heart palpitations. Now, I always wash my hands if I even *think* I got some additive on them. I can’t imagine how that kid must’ve felt after absorbing all that salt nic; at least the concentration in the pod is 5%, not 40% like in our salt additive lol.
Title for this video is a bit misleading, I mean I guess you didn’t outright lie, but I definitely expected a bit more on the topic and a lot less of the rest of it.
Image and font is annoying to read. Change the font. Not the best to read and you're probably going to get less viewership if your videos keep looking like this. I just watched a few of your other videos and I genuinely thought this video was older than the other ones I watched because the text was harder to read. also, i don't mean to sound particularly negative when i say this. i like these videos. chemical accidents are oddly enjoyable to read about, and informative about safety. don't take the bluntness in a weird way
While I agree about the safety concerns about the kid in highschool making NO2, I have to commend his curiosity and seemingly genuine interest in chemistry. Hopefully he learned to be more careful an do reactions that are safer for his level.
"bomb reactor chemist." *"Autoclave!*" One can educate ignorance. Stupidity is forever, but you can put lipstick on it. Then...carefully be elsewhere forevermore.
LOL, mouth pipetters. I mouth pipetted 15M HNO3 in high school chemistry. When I got to university they were all like "OMG! YOU CAN'T MOUTH PIPETTE WATER!!!!" I'm like, dude, please.
To the hydrog guy: the solution to your problem is not adding your Pd/C as a suspension in MeOH (believe me I've had fires making those up), but to use a different solvent. MeOH should be your absolute last resort, especially in industry. Even switching to EtOH is much, much safer. Or, make up your Pd/C suspension (using 50% wet Pd/C, fuck using dry stuff), with 50/50 MeOH/water if you absolutely have to use MeOH as some water is unlikely to hurt.
Edit: I see TC beat me to it.
thanks for taking the time to comment elnombre!
elnombre is a real chemist who has worked in industry - him saying this is more authoritative than me.
@@That_Chemist I may be an industry chemist but you're *that* chemist and, like the highlander, there can only be one of those.
Well damn, my first job in industry always used MeOH as the solvent for Pd and nickel catalysts. It was always a bit sketch to me, and it's good to know that there were other better solvents out there that could've reduced the fire risks 🙄
@@AnAcceptedName it's not just your old company, it's really common to see MeOH used as a hydrog solvent everywhere because it works really well. Alas, a lot of people either don't realise or just ignore the safety benefits of switching to something like EtOH.
The text is hard to read. I’d like suggest for a vignette for a darkened text background for readability. Like a rounded rectangle blurred so the white text is readable. Some of your image choices are uncomfortable to read the text over.
this
The font is also not good for large chunks of text.
yeah i already have to crank the dpi on my computer down because of my crappy eyes. please use a serifed font on a flat background
i thought it was pretty easy to read
Just turn the video quality up, it’s pretty easy to read. He’s narrating anyway…
Absolutely adore the FTL soundtrack. It really adds a relaxing ambiance and delightful contrast to stories of dinguses in a chem lab accidentally violating the Geneva conventions.
wakes up an old addiction
@@aatroww3379do NOT deal with giant alien spiders worst mistake of my life
It had me thinking I left the game running
as soon as I heard the first note when I started the video, i had to check the description because I knew i recognized that beautiful Ben Prunty masterpiece
Well I mean Anti-Bio beams are legal in the Federation so…
Fun Fact: handling green tobacco (ie: any part of the plant before it's dried) can make you suuuuuper sick, particularly if your previous nicotine exposure is limited/non-existent. In addition to being able to absorb through the skin, it's also basically impossible to wash off with normal soap and water.
what a nightmare plant what the fuck...
Tobacco is honestly really cool. Aside from its lovely flowers and *amazing* scent (and it being an important sacred plant), it’s got some crazy genetics that have led to a number of medical breakthroughs. It gets used for biosynthesis of complex molecules-the vaccine for Ebola, as an example, was got by using tobacco plants to produce the relevant proteins & deposit them on its leaves like it normally does nicotine.
cant wash off whats already absorbed
@@davechongle nicotine is found in the nightshade family, so when you think of the poisonous belladonna, same family lol. but tomatoes are too lmao
@@shnilikmw ohh interesting. makes sense then
I was working in an entomology lab and I was cleaning sharpie marker off our plastic tube lids, and various other things, that we normally housed our parasitic wasps in. Once the wasps die we always clean them and reuse them.
This time I was given 99% ethanol to clean it off and just went in barehanded to clean them off. Took me about an hour to clean everything I needed then I stepped back and realized "wait I'm hammered right now" and grabbed the MSDS and lo and behold ethanol can absorb through your skin especially when in constant contact. Luckily it was mid day and I sobered up before the end of the day and no one ever knew.
The FTL soundtrack is nice but I'd really prefer if the backgrounds weren't distracting as much from the text the images here make it a bit harder to read the text overall
your feedback is appreciated :)
A friend of mine worked at a nickel refining plant in the summers. They were one of the few companies in the country allowed to ask applicants if they use any kind of tobacco product and turn them down if they say yes. Otherwise, the cancer risk tends toward unity.
What country? Smokers are not a protected class in the U.S.
@@MushookieMan Norway. It's very limited what personal matters you can ask about in interviews. Nothing health related in particular unless it's especially important for whether or not you can do the job, like in this case.
@@tykjpelk We got told to simply not smoke on the job.
Peroxyacetic acid in the hospital where my wife worked was also an issue for PPE and for too many people not knowing the chemistry behind it all.
Interesting! I would assume that since they are doctors, they would be constantly teaching the hospital staff chemistry, but perhaps that is naive of me
@@That_Chemist maybe it's housekeeping staff or other staff role that doesn't necessarily require a medical degree? I can't imagine chemistry being left out of medical school curriculum though it's essential to understanding how hormones neurotransmitters and any biochemical reactions in the human body works
@@That_Chemist I worked in an ER. There's a huge problem with PPE complacency when handling non-medical/biological hazards. Heck, sometimes even if it's a medical or biological hazard, they'll just wear gloves and ignore the fact that you can still breath in bad stuff. It took exactly one surprise Scabies patient for my ER to get *really* good at wearing PPE. She came in for high blood pressure. She didn't want to tell us about her itchy rash because she was embarrassed about it. We're lucky there wasn't a huge outbreak at the hospital, because scabies requires special levels of PPE to prevent infection. That was a bad day.
@@That_Chemist Doctors are dumb as shit bro. Trust me.
Housekeeping role, so they Donny have any interaction or training with the doctors. The senior leaders know some of what they’re doing, but the people in charge the rest of the time didn’t know how to change and test the chemicals properly.
None of them did anything about respiratory PPE and it was becoming sensitizing for my wife to work around it.
My wife has the equivalent of an associates in chemistry from overseas but it was her first job here while learning the language and she was appalled by the lack of attention to detail.
That’s how things like antibiotic resistant staphylococcus aureus infections spread - the people doing the cleaning aren’t trained or paid enough to really be properly trained.
Speaking of HF, my lab's Swagelok sales rep told us a story about one of his customers who used it. They would buy a big tank of HF stored outside, fill up buckets from a spigot, and hand-carry the open buckets without any PPE. The sales rep refused to sell them anything until they fixed that.
That's nuts. I worked in a lab that used litres of anhydrous HF at a time (literally) and any time we went near it we had to be fully decked out in safety gear, and if it wasn't in a fume hood (pressure vessels) then we would be wearing a hood connected to an air line. You could not get me to use even a small amount of 70% Py(HF) without a lot of PPE.
I was actually working with HF a couple of days ago.
Note - I am not a chemist. I have an A level in chemistry, and that's it. Nor was this insane homechem.
No, this was a commercial rust stain remover where the active ingredient is 1-2% HF. I couldn't believe that this was actually a consumer product, but I was able to buy a ~500 ml bottle of the stuff and it was shipped like a regular parcel.
The label does warn of the HF content and gives handling instructions, but consumers aren't known for their rigorous safety protocols.
Now, I had the advantage of actually knowing what this stuff is, so I prepared accordingly. Safety glasses, face shield, double gloving - the works. Then I got to scrubbing the rust stain on my sink I was targeting with a sponge. Yeah, that stuff is pretty effective, it made a marked difference!
So anyway, I finish up and bag up the sponge I'd been using and some paper towel I used to wipe around after in a plastic bin bag. Then I washed down my gloves before taking them off. HF away, job done.
Then inspecting my sink and my finger made contact with a wet patch. It was where I'd put down the sponge before bagging it up.
I washed it immediately and since more than 48 hours have passed since with no effects, I feel safe in saying I got away with it. This was a dilute product, and then further diluted by water in the sponge.
But still, given HF's reputation, that was a brown trouser moment, despite the precautions I took.
Definitely prefer the style of previous Chempolations. The artistic backgrounds and different font in this one are very bad for the signal-to-noise ratio when trying to read things.
yeah we will always work to improve signal:noise - we are testing style changes first and we will work to make it even clearer to read, while making some artistic liberties (but know that I, much like you, see the pervasive importance of signal to noise)
@@That_Chemist I really appreciate you being receptive to feedback, I have dyslexia so this format is really hard for me to read and strains my eyes because idk where to look
My friends coworker is a clean freak and so he would usually wash his hands with distilled water which was kept by the sink. The water was kept in a large beaker that he would just pour on his hands. But one day someone left some chemical (I’m not a chemist but I believe it was a high concentration of sodium hydroxide) in a beaker next to the water . And as you can guess he used it to wash his hands. As he scrubbed his hands, his skin kept feeling slippery from what he thought was soap but as he continued to wash a coworker realized what was happening and stopped him. The slipperiness was actually the fat in his skin turning to soap and he had to be taken to the hospital. He kept his fingers but he washed his hands long enough to do a lot of damage.
WAIT THATS A STELLARIS BACKGROUND
(I was just playing that game and turned this on as background noise, that’s a funny coincidence.)
Anyway, this channel is really quite entertaining to me. Being a high school student, I don’t really have access to chemistry equipment, and before I ever get some, I think that knowing some of the dos and donts is probably a good idea. However, there is only so much I can really get out of just a list of instructions, so seeing what can go wrong specifically is quite nice. Have a good day anyone reading this
So I used to work for my polytechnic's laboratory for experiments, extra income and fun. My school is well known for its biological course thus it got quite a number of biological laboratories. During of one day during a microbiology class, the professor is conducting a lesson on gram staining. One for girl decided to flame sterilize a bottle containing 95% ethanol, as if it was bacteria growth media, this cause the container and her hand on fire and she started screaming and crying. At the same moment her boyfriend went to help,however he forgot his hand is covered in ethanol from hand sanitizer. Upon touching his girlfriend's hand (which is on fire) his hand caught fire too. Luckily, the professor took both of them to the emergency shower to put out the flame, while the other student use the fire extinguisher to put out the flame. We later now this as the Titanic fire incident or the flaming Romeo and Juliet incident.
0:20 I'm not a chemist. What does yada yada mean
love these chempilations! glad i could catch one so early
I'm glad too! Happy Saturday :)
i can still feel the lab nicotine surging through my system every time i smell cigarettes....
I’ve been craving one all week, just have one sitting next to my bed so I can sniff it before going to sleep
All of these stories have one thing in common, the lack of respect for how dangerous a chemical or compound can be. Even if you think you fully understsnd something, you dont. Always respect any chemical or chemicals you are working with and understand they can all be inconsistent or volatile at any given moment.
I used to do purchasing for a major research department at UC Santa Barbara and should share some of the crazy stuff that happened in the Bio departments. Leaving cocaine unattended in unsecured labs, hoarding expired Ketaset, opening putracine outside of a fume hood...
Say, where can I find these labs? Asking for a friend
14:47 VERY IMPORTANT NOTE about screwing around with plastic bottles and pressure... there are only a few sizes of blanks for blown PE bottles. A lot of the time, a smaller bottle with a common cap is a universal blank and the plant just blows a smaller mold. That means the smaller bottle is quite a bit thicker walled than larger ones.
And thicker walls means more pressure can build before the container fails.... sometimes a LOT more pressure, and the shrapnel is thicker as well.
“Nuclear train” is definitely a vibe. Given what happens when trains derail, it maybe isn’t a good idea, but it does definitely have a fallout vibe.
I have to assume it isn't a full-sized train (maybe narrow gauge?), since I don't think RTGs could put out enough power to move a train, unless it was rather light, like a passenger train, which...please no.
To whoever's doing this:
Just electrify it, okay...you can use nuclear power to run electric trains, like France does. Do. Not. Make. The train. Nuclear. I beg of you
That FTL soundtrack brought me back
I consume a lot of Juul pods and as a cheapskate and oxidizing acid enjoyer tend to collect the spent cartridges to extract the electrodes for the gold (money is fake but a screwdriver that can stir piranha without turning to rust would be sweet). Even empty pods handled carefully, with the tolerance from having emptied them and thick gloves will tend to get me into unwellness within 10 minutes of fiddling. I don't know if it's still the case but a lot of tobacco farms had a policy of only hiring smokers because without a tolerance to nicotine people would faint out in the fields from just picking leaves.
I didn't realise how much I followed the text whilst listening, now it's changed to new font/background. Hard to follow.
Restricted Chems [pesticides] Operator here. Nicotine is no joke. I use a nicotine-based pestocide for yearly systemic treatment of trees and bushes [Imidacloprid] and we use very little for an entire years worth of treatment for killing pests like aphids. The warning label has a warning one step higher than the broad-spectrum insecticide/bug spray I use to create pest perimeters even. Be careful with nicotine!
Me having my dinner while starting to watch a Chempilation
Hears FTL ost
~instant neuron activation~
Thank you for this awesome video! The soundtrack worked really nice with the rest of the audio!
And damn, I miss playing FTL. But I'm not that good at it, so yeaaaaah lol
it's such a fun game
Back in the day, one of my classmates got tricked into keeping snus (basically ground tobacco, this was the loose, strong stuff) in for a whole class on a dare. I don't think he ever used tobacco before. He turned pale, then green, then gray in the face. Then in the end, he had to run out and barf. This was all in about 20-30 minutes. Snus hits different.
Also, me now trying to quit snus; using nicotine patches and snus at the same time...
The patches are horrible .
They are hard to light and the taste is atrocious .
Boiling ammonium nitrate with a Bic lighter and pulling the gas through H2O and then into my lungs was probably not a good idea.
I thought I'd get just NO2 through, I'm not sure if it worked or not.
You put ammonium nitrate into a bong?
@@leothecrafter4808 a little dab rig
font is unreadable
Dude the FTL soundtrack made me feel the strongest sense of unknown nostalgia and I read the description and HOW DID I FORGET FTL!? Perfect type of music
I like the music but the backgrounds need work, i cant read the text at all and it overall distracts from the main visual aspect which is the story itself
Re: nickel allergy: I discovered I have that after getting my ears pierced as a teenager-took a while to realize that the itching wasn't just the usual irritation of a healing wound. I can't wear the vast majority of silver jewelry due to its nickel content. (Please hold the werewolf jokes, I've heard them already. If I can find gallium silver, that doesn't cause a reaction.) It even turned out that the fastener holding the tassel on my graduation mortarboard was some nickel-containing alloy and I ended up with a fingertip-width blister on my scalp. Nickel is such a cheap filler that I have to be really careful about any metal that's going to be in contact with my skin.
Omg same, I can only wear sterling silver rhodium medical grade steel and 14k/16k gold earring findings. I work with beaded jewelry so luckily I know how to replace the findings, every single piece I make to sell always uses hypoallergenic findings unless they're hard to come by(I usually disclose this on anything I put up for sale though)
Love these videos, and they remind me of some of the accidents that happened in my (although short) chemistry career.
In 8 grade, my chem teacher thought it would be a cool experiment to put a little sodium in a plastic bucket of water. The way she did this, was by taking a large chunk of sodium out from the oil (about the size of a large hrape), and shaving a small bit in to the water. This time she dropped the whole chunk, yelled for us to duck, and then a series of explosions. Luckily she was very safety contius, and had us wearing goggles and standing back.
My second little mishap happened in what equates to 11th grade in the US. We were to synthatize acetylsalicylic acid. After the synthatis was done, we were all left with a wet slurry. To dry it out, the teacher put it in a drying oven and set it to 40 degrees. We were to measure our products and calculate the yeald the week after, so it was left in over the weekend. Turns out my school had elementary schools students visit the days after we put the product to dry, and someone had messed with the temperature of the oven. I forget if it was set to 200c, or 400c, but it was apparently enough to let the the acetylsalicylic acid leave the oven in gas form. After it left the oven, it condensed back to solid, coating the wall and sealing in a white layer of something that resembled candyfloss or glass wool. Best part was that he made us clean it up and gather as much of it as possible, in the process aerosolizing the acetylsalicylic acid. Mind you no PPE outside of gloves. I am pretty sure we were breathing half of it in, as I could feel it irritating my nose. We still got a yield of 23%, presumably breathing the rest in.
In my 12th year, a girl was searching for some chemical in the chemicals closet, and found a tub of white unlabeled powder. Now I have no idea why, but she decided to blow into it, causing her to be blasted in the face with the white powder. Next thing to happen was her screaming and panicking. Ran to the eye washer and began to wash her eyes. At this point we were sent out of the lab, and she was taken to the hospital via ambulance. Luckily she suffered no permanent damage. The mystery powder was never (to my knowledge) identified.
I also played with dry ice (from ice cream man), water, and bottle when I was in primary. I caused 2 "explosions" using 1 bottle.
At first I didnt put enough dry ice to cause explosion. I picked the bottle. I opened the cap. The cap shot to the air with loud bang came from the bottle, almost as loud as when bottle exploded. My friends looked at me while I still holding the bottle. Then I put more dry ice to the same bottle, threw it, and watched it blew up from the distance
8:00 what kind of HS does this guy go to, my HS all we did was a titration on the first term and a calorimetry test with copper sulphate
i think the same thing all the time. the most dangerous thing I ever did in 2 years of HS chemistry labs was make cobalt salt solutions to run through the little colorimeter for a beer's law lab. I've heard insane stories come from HS chemistry like evaporation labs where they had to time the evaporation of a mil or two of LIQUID BROMINE without a fume hood. fumes sink, someone bends down to pick up a pencil, evacuate the room.
I love your videos and this is a good one but I have a slight nitpick to make. I don't like the font in the messages because "O" can look like G. Making 150 mg look like 15g mg. Kinda confusing for a sec.
I had a fun incident involving NO2 once in a lab I managed. I was working alone with some copper nitrate waste from performing silver recovery, trying to grow some crystals at the same time. They're really pretty when they are done right, so naturally I was boiling down some of the diluted waste to eventually get a saturated solution. While the solution was hot, I decided I would try to filter out some of the insoluble crud using a large funnel and a Whatman No 1. So, I set it up on the floor by a benchtop and went into my office to catch up on some work on the computer.
About 10 minutes pass and I noticed a faint orange tinge in the air just outside my office. Suspecting something might have gone wrong, I put on my respirator and ran out just in time to see my copper nitrate filter setup with large amounts of NO2 gas billowing off the top of the funnel I was using, all the way to the ceiling. I immediately opened the door to the outside of the building, placed a fan directed outside, closed all the doors to the lab and put caution tape and "respirator only" signs on the outside of the doors, just in case another employee was in the vicinity.
Turns out, when pouring hot, concentrated copper nitrate solutions through combustable materials, they can spontaneously oxidize, emitting a fair bit of NO2 gas. Luckily nobody got hurt, but since then I have a much higher respect for oxidizing agents. Next time, I think I will just leave the solution to evaporate on its own and filter it beforehand 😅
Pretty mild in comparison but back in secondary school (high school for you Americans) we were doing electrolysis, I can't remember on what because it was several years ago now but I know we were meant to produce chlorine as one of the products of it. We followed the step-by-step instructions but it wasn't doing anything, we talked to the teacher about turning up the voltage and incrementally did that but it still didn't do anything. Then I suggested that maybe the instructions had it putting us in the wrong socket in the power packs. Plugged it into the DC one, in hindsight we probably should have reduced the voltage before doing this. It definitely began to bubble and produce chlorine, rapidly. About five seconds later we call the experiment a success, all like 10 pairs of us switch off our experiments, and open all the windows and corridor door and stand outside for about 15 minutes just to make sure we don't accidentally gas ourselves.
omg ftl menu music backing!!!! I love that game sm glad you have good taste
I had nitric acid at work about 23 years ago, to clean fiberglass resin off the tools in a fiberglass shop that made ventilation pipes for coal mines.
I had no idea about nitric acid, I heard that one of our guys went to the ER with serious chemical burns on his hands. I asked my dad about it, he had some vague memories of it being really nasty stuff in his chemistry class in the late 1960s, so I just used more caution than I would with boiling water.
dry ice at 14:38 well it was a yoghurt container, so I guess that makes him a "milk dud".
As an Albertan that nickel plating operation's safety checks out.
Also shoutout to Panago.
I eventually would consider coming out to Alberta for a week or so to make some videos - sooner or later I gotta do that
As an apprentice I once had an internship at a analytical lab of a chemical plant, which was in the building next to the unit where they produced hydrofluoric acid (at that plant a few people even died, of accidents with the concentrated HF back in the day when safety wasn't seen as too important and PPE was not as good as it is today). One day I got to come in later as I did not need to join the big meeting of all the staff of all labs. Sadly they discussed there that there was a test of the "gas alarm" happening that day, sadly no one remembered to pass that info on to me. So you could guess what happened when I was alone in the lab finishing some paperwork. I think I never heard a sound that put so much fear in me, and was already in the "save room" just about to tape up the seams of the door as the protocol called for, when finally one of the lab technicians ran into the room and cleared up the situation. For a moment I really thought I'm about to die😂😂
How did it absorb into your skin THROUGH your extra thick glove? I have worked with 100mg per ml nicotine and have had it directly on my skin and I just washed it off within a min and had no effects. I'm just wondering how it got through a glove
Regarding HF: I KNOW I am not ready to work with HF, and I have probably done more work with HF than almost all of the people looking at this. My first career was semiconductor development in a university environment, and the cavalier handling of aqueous HF, anhydrous HF, and anhydrous gas was truly frightening. HF, Methylene chloride, and benzine were handled like soda pop, with minimal concern for PPE, ventilation, or fume hoods. We actually only had one fume hood in the clean lab section (bunny suits and masks, class 10 lab, with class 1 work cells)
Though, admittedly, not as scary as my then girlfriend who was a materials lab tech at Corning...
Tweaking on nicotine through thick gloves.....
Dude was tweaking beforehand.
more text contrast pls
The text placed on top of images is almost unreadable. The font makes it even more difficult to read. IMHO the previous presentation was very good and didn't need any improvements. Love Chempilations though
The music from "Faster than light" in the background makes it even better!
Fun one from my bio lab last semester:
We were working with sulfuric acid for a PH experiment. Kind of a scary chemical but being so far in college I figured everyone in the lab knew the basic rules, not goofing around, taking the chemicals seriously, all that. Well, these two kids were messing around the entire time, even when we were being instructed. So, when we all get our beakers with about 50mL of sulfuric acid each, I started getting a little nervous because they were still being obnoxious. Not even 10 min. into the experiment we all freeze on the spot when one of the aforementioned kids said, and I QUOTE:
"Oh, we spilled our sulfur...stuff. Is that bad?"
It wasn't just a litle bit, either. It was the ENTIRE BEAKER'S WORTH, and these two galaxy brain geniuses just sat there as sulfuric acid pooled on their desk. Thankfully, nobody was hurt, but given the fact these kids had to be STEM majors of some kind to even be in the class, it was definitely one of the most depressing lab days. I don't know where they are now, but I sincerley hope they changed their majors.
An unfortunate choice of fonts to use in a video..
you should post more 5 important papers in organic synthesis been it is the best series on your channel
We are planning to, I was just busy with my PhD defense, but we should be posting them regularly again starting later this month or next month at the latest
Whoever said that Nicotine got nasty reputation of passing through the skin are right. I have experienced that firsthand so I learned to wash immediately after I get vape e-juice on my hand or anywhere so I don't get hit hard. Nicotine salts are much worse.
Background for the text is bad
Can't see stuff
In my year 9 science class we had to burn a tiny amount of sulphur over a Bunsen burner on a point then put it in water and test the ph. The pair next to me did not listen to the part where we were told to use a tiny amount and burnt two whole spatulas of it. We were warned about sulphur dioxide. Me and my partner opened the window evacuated that area of the class and told the teacher. The pair were know for not caring. Some other incidents include spreading copper oxide across their area, pipetting (kinda dilute) sulphuric acid into a students pocket and tasting various chemicals
Here is a story of something i deeply regret.. In college I became hooked on the drug GBL, which is an insanely strong solvent. Drinking as much as 1.5ml in a personal sized soda bottle could actually "melt" off the part of your tounge that sensed spicyness, so it would work great for hot pepper eating competitions, etc. Anyways, my dentist looked horrified when she saw my teeth, after about a month of usage, and all I told her was "I have been drinking a solvent" and she looked at me like I was crazy. Now I am missing all the molars on my bottom jaw since they had to be pulled out. For this reason, I would NOT recommend anyone buys a bottle of GBL, or use it more than a handful of times. God only knows what it did to my stomach...
Dry ice can be very dangerous. A few per cent in the air can be lethal. It should always be in a ventilated are or outside. Everytime I see someone riding the elevator with a box of dry ice, I hope he doesn't die... Never ride an elevator with dry ice (or liquid nitrogen, but that at least only displaces the oxygen and isn't toxic like dry ice), put it in, press the button and take the stairs. Because if the elevator gets stuck, which does happen, you will pretty surely die in there...
Ummmmm one question - why the fuck is there a nuclear train project? Where do they work? Please tell me it's NASA
No, it’s radiopharmaceuticals (usually). They need to get the medicine to the hospital ASAP otherwise it decays and becomes useless.
Why is ethanol safer than methanol for pd/c? Can't ethanol vapor also spontaneously combust?
5:06 I almost evacuated my undergrad lab because someone was painting out in the hallway and my professors didn’t know about it lmao
As I learn more, vapes concern me with heavy metal tox but as a kid I used to hit weed from a brass pipe I made
In MRE (Meal Ready to Eat) there is a magnesium heater to warm your food. If you place that into a sealed container it has the same effect as the dry ice.
That dry ice bottle story is great. Yk what´s even funnier? Filling big plastic bottles only with dry ice (no water so it takes longer for pressure to build up) and burying them several feet underground. Wait a few minutes and kawoosh! Massive earth geyser.
HF is one of those things that make me happy that I'm not a chemist. That stuff scares the crap out of me.
One of the few things scarier than a bomb going off is a bomb not going off when it should.
Eh, that story of nicotine poisoning smells like BS. Dude's not vibrating in the corner because he dosed himself with concentrated nicotine like he took a hit of meth, he's going to be bent over wishing he wasn't so nauseous and had a rocking headache. Sorry to say it's wrong, but speaking from experience a nicotine OD is nothing like a stimulant OD.
Can't think of any major screw ups I made in the lab but I have a chemical incident story nonetheless. Sometime in my childhood I was having dental sealants put in to prevent cavities. The usual process involves painting on a small amount of 30%-50% concentrated phosphoric acid gel onto the crown of the tooth so that the sealant binds more readily when applied. For some ungodly reason the dentist decided it would be a good idea to repeatedly wipe his tools off on the corner of my mouth while doing the procedure. I ended up with a small red chemical burn that stung for weeks and was rough and discolored for months. Based off other horror stories I have heard of this, I got off easy.
If you started something that's gonna explode and ran away so it wouldn't explode in your face, don't approach it when it hasn't exploded yet and still might.
Wait how do you make ampules of toxic gasses? That sounds dreadfull
Shouldn't Juuls have a "poison" warning label? How much toxicity is it legal to put into a small package and sell to consumers without a warning label?
Can't speak for America but disposables do have a poison warning label here in Europe
Probably because of big tobacco lobbying, as a Canadian it concerns me that the FDA is easily bought over by corporate lobbying. huge conflict of interest there.
Can you make a tier list of chemicals that both are considered medicine (drugs) _and_ an explosive? Like nitroglycerin, DNP, perchlorate, alcohol. There are probably more.
This is brilliant
The dry ice bomb story: that's proof that the scariest thing that can happen with explosive is...nothing. I have made bombs like this with MRE heaters in the army, it has a mixture of metals (magnesium being one of them, I think, because they burn after you use them and dry them out, with a blinding, blue-white flame) and a water bottle. I've had a dud, but I knew by then (having trained with actual explosive like TNT and C4) if nothing happens, leave it alone. Boiling water sprayed everywhere in the best case scenario if it ruptures when you pick it up, can lead to serious burns.
FTL soundtrack and Stellaris background with Star Trek font.
N I C E
That background image for the first couple of minutes seems familiar. I feel like I have seen that before, but I can't remember where.
Stellaris
The Stellaris background is perfect for stories about randomly creating war crime gas lol
Oh dear I am glad I am out of home chemistry for a good old while.
I have this fairly dumb incident where I was trying to distill/concentrate some alchol in a sketch af setup. needless to say when I try to dissemble it it caught on fire and I am really glad that the concentration I got is probably marginal on explosive threshold and the container isn't sealed. A jet of flame shoot toward the ceiling at least for about a meter high but that is about it, I just let the rest burn out peacefully.
Surprise that is not where my home chemistry ends. It ended after I accidently made too much chlorine gas. To be fair I intend to make some and I have read up on what I should use to nutralize any excess (NaOH solution iirc). Well for some reason (not that I can't identify but there is so much things wrong about a 10-ish year old making chlorine at home) there is a chlorine leak. when I realized I am smelling something caustic I basically open all window, tear down the generator and throw it into a NaOH bath I prepared.
I suppose this kind of extinguished my love for chem so I am on a different path now, for good. Watching more qualified chemist doing it on youtube is a lot more fun and way safer.
also while in the beginning my father was supervising me it didn't happen later. but to be honest he wasn't even that worried since he work in silicon fab which involed vats of HF and whole pipeline carrying SiH4 (which explodes in contact with air) both of which are like S+ on danger scale. they even have a shed specifically meant to store explosive shit and the walls are reinforced while the roof is intentionally weak, so if it blow up it shoot upward and not into other process equipment
“The F-D-A took my vape juice away, they took it away, away meh aye … “ Joey Ramone (maybe)
I despise vapes. They were such a problem in my high school.
0:23 Vitamins video was great! Mpb bby, 😮😂❤
Goated music choice
I know this video is older, but I have a somewhat related story. Technically not chemistry, but science nonetheless.
So in my physical science class, we have been learning about the periodic table. I’m really enjoying it, actually. My teacher is actually married to the chemistry teacher so she went over to his lab and took some samples of a few elements. All harmless, of course. Except for a bottle of mercury. Now all we’d really do was pass these around, look at it, and all that. Well, one day I go to class as normal, and I can tell that my teacher is kinda upset. She then proceeds to say that earlier that day someone had spilled the bottle of elemental mercury all over the table in the front of the room. Now, think about this for a moment. The mercury had a label on the front stating that it was (obviously) extremely toxic. And someone spilled it everywhere. What do you think they did? Tell someone? Clean it up? Well, no. They left it there. Yes you read that right. Someone left a puddle of mercury on the table and just left the room. I don’t know how long it was sitting there but still, holy shit. No one knows who spilled it, either.
Why is your logo red now?
I mean, I looks nice but, are you just angry right now?
might be nitpicking here but in the first story, anything in DCM is never going to get anywhere near 100 degrees Celcius at reflux
lots of chemists do reactions in sealed vessels where higher pressures can be achieved, and the boiling point of a solvent is increased
even tho its pretty rare aside from like supercritical CO2 extraction
@@That_Chemist sure, but it is specifically mentioned that the reaction was done in an rbf, and I don't think they wanted to get the flask to hold the 4000 mmHg or so of pressure to get DCM to boil at 373K
1:36 who posted footage of me in my own home on the internet
I usually read the text along with your speech coz English isn’t my first language. And I beg you not to use images as a background, as well as fancy fonts. Just screenshots of the discord messages were perfectly fine.
I'd love to watch your videos if it wasn't all reddit chemist re reads, Try some cool chemistry
So I work in a vape shop and due to our municipality’s shitty laws, we’ve got to use nicotine additive to nic up the customers’ juices (off topic, kinda works in our favor in the long run cause we can now tailor the amount of nic for the customer instead of having to rely on the manufactuer’s concentrations).
I never wear gloves, and one time I didn’t wash my hands after spilling some freebase nic on them one time, I spent the next hour in a cold sweat with heart palpitations.
Now, I always wash my hands if I even *think* I got some additive on them. I can’t imagine how that kid must’ve felt after absorbing all that salt nic; at least the concentration in the pod is 5%, not 40% like in our salt additive lol.
Title for this video is a bit misleading, I mean I guess you didn’t outright lie, but I definitely expected a bit more on the topic and a lot less of the rest of it.
For this reason, we always carried out ghydrogenation in t-BuOH. No fires.
FTL is a great game. Its cool to hear you're familiar with it.
stellaris backhround?
Image and font is annoying to read. Change the font. Not the best to read and you're probably going to get less viewership if your videos keep looking like this. I just watched a few of your other videos and I genuinely thought this video was older than the other ones I watched because the text was harder to read.
also, i don't mean to sound particularly negative when i say this. i like these videos. chemical accidents are oddly enjoyable to read about, and informative about safety. don't take the bluntness in a weird way
While I agree about the safety concerns about the kid in highschool making NO2, I have to commend his curiosity and seemingly genuine interest in chemistry. Hopefully he learned to be more careful an do reactions that are safer for his level.
"bomb reactor chemist." *"Autoclave!*" One can educate ignorance. Stupidity is forever, but you can put lipstick on it. Then...carefully be elsewhere forevermore.
once at work, a coworker went to refill his mod vape and missed, squirting a bunch of nicotine all over his hand.
he had to go home.
God i love the ftl soundtrack
More videos like this! :D
1:33
that cat looks so much like mine omg
LOL, mouth pipetters. I mouth pipetted 15M HNO3 in high school chemistry. When I got to university they were all like "OMG! YOU CAN'T MOUTH PIPETTE WATER!!!!" I'm like, dude, please.
FTL soundtrack eskettit