My tap water smells like formaldehyde. Earlier in the year, I received a letter from the utility stating that it has 46.1 ppb HAA5. If environmental working group is correct, it's also really high in Chloroform, trihalomethanes, and trichloroacetic acids. Apparently these are byproducts of the treatment process, but I would speculate they are also byproducts of ineptitude. I've been filtering my water and then distilling it for drinking purposes.
@@MushookieManjesus christ. It sounds like there is an excess of some sort of organic molecules in the source water. Upon ozonolysis and chlorination, the carbon reacts to form, among other things, formaldehyde and halocarbons. Note that distillation alone won't remove these - you need activated carbon filters (which it sounds like is your first step). And yeah it sounds like the water co is doing things poorly.
Personally, I've always wanted to go into Physical Chemistry and work with lasers, but stories like this keep me up at night so i think Imma just not 😭😭
Did my PhD in Phys Chem. Nothing too scary with our lasers, it was quite fun. We did work with some pretty toxic and / or dangerous gases, I think hydrogen sulfide was the worst. We were going to do some work on WF6, arsine and ethylene oxide but me and/or the suppliers put their foot down as while we did have fume extraction, I didn't think we could safely handle those gases. Plus I found the data we were after (some IR spectra) in a database to a much better quality than we would be able to achieve.
The hot ethanol absinthe story from a previous video reminded me of an incident from when I worked at an animal feed mill. This place was disgusting and dangerous and I have many scary stories (like decommissioning a silo that contained powdered blood- potentially contaminated with mad cow disease- by being winched down inside on a harness and using a broom on the walls) but I'll stick with an absinth-themed chemical screwup. One type of feed we made was rabbit pellets and since rabbits love them some licorice, we used anethole as a flavoring additive. This was kept out on the manufacturing floor in a 55 gallon drum. While this part of the plant was full of steam and grinding machines it wasn't environmentally controlled. That meant that if it was cold outside it was cold inside at floor level. Anethole is a liquid but freezes easily into a waxy solid. To prevent this the drum was kept ready for action with an electric warming band around it. One winter day the warming band failed and the drum solidified with a big run of rabbit pellets coming up that could not wait. My supervisor and I got the great idea to bring the whole drum into the warm control so the anethole would flow again. This happened much more quickly than we imagined and as we were working on other tasks in the control room it started smelling like licorice. We assumed this meant it was working, but it was working too well. See, when they had first tried to open the tap nothing came out and after they realized it was frozen hadn't closed the tap all the way. So there was a nice puddle of anethole building in the back of the control room and giving off it's lovely vapors. We were all cracking up about it like a bunch of movie stoners when suddenly my supervisor held his hand up in front of his face and says "I am high as a f-ing kite." I was seeing tracers and time felt like it was passing strangely. Once we realized what was happening we fled the control room, ventilated it, and took the drum back out so we could clean it out. While we had been breathing the anethole vapor we felt AMAZING but the hangover was probably one of the worst headaches I've ever had.
I actually have an industry story courtesy of my dad. He works at a plant that manufactures, packages, and sells pesticide. This past November, there was a company there doing some welding and other maintenance on the big storage cylinders, including doing work inside of them. At one point, one of the welders was doing some work inside a storage thing , no PPE aside from the typical welding gear, with an electric welder. Suddenly, some wastewater started flowing into the tank. Not clean water. This is highly contaminated with whatever product they were working with that week. Apparently the lockout tagout protocol was not followed at all, with multiple valves not being closed like they should have been. Somehow no one was fired for this incident, but Dad and I are definitely expecting a lawsuit from the welder.
9:00 as someone who has worked as a Robotics Operator I can relate to the distrust of these 'safety systems'. I still cant believe I used to always walk up under 300+ lb molds hanging in fixtures, because one day (they day before they were due to be inspected) one of the hanging fixtures snapped. The Operations guys tried to blame it on me even though I could not have done anything to prevent it and hit the e-stop as soon as my feet hit the geound from literally jumping up at the loud noise of this heavy mold falling down.
I have heard a lot of sketchy incidents and and shared a few of my own in these Chempilations . However , an industrial x ray device that simply spits out the the yummy candy prize when struck by an object not falling from orbit , is a whole new level of sketch . HOLY SHITE !
I once had a job where I had to become certified to work with Class IV lasers. The work required short-wavelength, high-energy photons, so the lasers were green, blue, and ultraviolet. The scariest were the UV lasers. The interesting part was I was a software developer. Normally, you don't consider writing code to be a life threatening endeavor.
About the pipes! It's called cured in place pipe (CIPP). It requires the existing piping to be only mostly dead, there's only one thing you can do if your piping is all dead.... well two things. You can do open cut replacement or you can do something called pipe bursting, where you take a pointy end at the head of a new run of pipe and you force it through the existing pipe, bursting the old pipe and leaving the new pipe.
I currently work at in a lab for a Pharmacutical company. We recently had an incident involving an intern and a a standard pharmacopea method for hydroxyl value. Test was fine but during clean-up everyting is trown in the same 20 L jerrycan. Including 2/3 of a fresh 2.5L bottle of acetic anhydride. The lid is screwed on and no 30 seconds later the can exploded spraying the content including pyridine and a load of acetic acid/anhydride all over the (thankfully) mostly closed fumehood. Nobody got hurt but we had to evac the whole floor as the airsystem, originaly from the 60's updated in the 90's, is sharred. Lost half a days of work and the fumehood was out for over a week.
I'm an industrual electrician and I have worked quite a bit in Dow Chemical in Midland, Michigan. A buddy and I were working on a highline pulling wire when he flagged me down (he was spotting me in a lift). Confused, I come down and see our permit writer talking with him and I notice a yellowish substance crystalizing on the pipes and stairs below. Minutes later, about 10-12 more Dow guys come out of the woodwork. A to-this-day unknown substance had dripped onto his face (likely HCL). They sent him to the shower immediately after seeing that the SDS was out of date. Turns out, they had closed both tanks in that pipe run and the warming air temperature causing at least a dozen pipe flanges with the stuff in it to burst and leak. Safe to say, we went home early that day.
I tried using Freon to cool a weld. I thought I was being clever. The Freon caught on fire, which I thought wasn’t supposed to happen. The fumes were the worst I have ever experienced. I only caught a tiny, quick whiff, but my lungs hurt for a week.
I have some nice story about pvc. In my first job as an helper electrician I was tasked to bend some pvc pipes. We use blowtorch to soften it, since I'm relatively new to the job and with 5 minutes of training on how to bend those pvcs. Needless to say some of the pvcs I'm bending end up burning some parts of it and I was working underground with no protection what so ever. I inhaled some of the fumes of burning pvc, I can feel some burning sensation to my nose and throat but I still continued. After finishing a bundle, I noticed that I'm having a little bit of shortness of breath but I just endure it until the shift is over. To this day I still dont feel the effects of it but I'm pretty sure I'm more predisposed to having a cancer....
If the pipes in question are not already connected at one end , it is doable and they even make and sell ovens specific to this task . But that takes money and time , 2 things not generally found on production jobs . A heat gun is a more controllable option IME , and helps avoid burning the PVC and making Satan's Air Freshener . Of course they sell long radius elbows aka sweeps for all the conduit sizes , but , they aren't always a practical solution in every scenario , and , they are pricey . Use the heat gun if at all possible , and take your time . Your lungs will thank you .
The other day my dyslexia kicked in while I was attempting to create a blue hued hydrogen fire. I thought I was using copper chloride, then instead of the aluminium, the copper hypochlorite started to bubble and the air started to smell funny. (I used HCl for dissolving the aluminium and for a first test I tried it without any copper salts and it turned out too slow, that’s how I ended up with this weird order of adding stuff) Luckily I was outside and I had some sussy copper sulphate based pesticide which worked surprisingly well for both the flame coloring and for breaking up the oxide layer of the aluminium.
Putting chemicals into the sink always surprises me in places that deal with chemicals regularly. I get it for schools, the experiments don't use very dangerous substances and are only doing occasional experiments. In our first inorganics lab in uni, I get that some stuff like dilute acids and basis could be discarded in the sink, but even that gives me pause in retrospect. But in a professional setting? Just collect everything with some very clear exceptions. Yes, it's moderately expensive and energy intensive to do so, but burning and corroding pipes that occasionally spew HCN are no fun, either. I have a very short list of stuff that goes down the drain: Salt water from ice baths, the invisible chemical residue on my gloves when I wash my hands, sodium carbonate and sodium bicarbonate, dilute H2O2 and dilute nitric acid - the last four are kind of more dangerous in a waste container in an organic chemistry lab then in the sink.
Well the problem with collecting everything is it needs a certain dicipline to keep wastes properly separated. As you quite rightly point out peroxide and nitric acid need special attention but as a simple example in electronics manufacture we used to use ferric chloride to etch away copper to make circuit boards. Now we also tend to use gratuitous amounts of isopropanol for cleaning ... well ... everything. I'm not certain but I suspect that if mixed ferric chloride might be able to oxidise isopropanol to acetone, and from there to some interesting organic peroxides?
There are in fact thermophile microorganisms doing cell respiration with sulphur instead of oxygen. Funnily enough we'd still be breathing out CO2, iirc how the ATP synthase thing works, the analogue that sulfur would turn into is hydrogen sulfide... so yea, stinky.
Phosgene is NOT scrubbed by a water aspirator - no kinetic hydrolysis. A real time phosgene scrubber is a big volumetric cylinder partially filled with n-butylamine and a couple or three inches of KOH pellets. Incoming bubbles rise through the KOH bed. Remember your generous suck-back flow trap. I was there when a grad student bench aspirator distilling POCl3 suffered a flushed toilet. Very, very awful.
That last one about Sulfur - At the bottom of the ocean, near hydrothermal vents, there are a whole slew of creatures that survive from the Hydrogen Sulfide being emitted from those vents. Bacteria convert the H2S into other compounds to start the food chain.
About the laser story. Since the incesent i dove more into it also the chemistry behind it. What i think happens is due to the extreme heat the laser produces (it can litterally burn trough stainless steel when o2 is added.) It rips appart molecules from the air. In order to control the funes and burn the machine uses an constant air suplly to blow out the flame. This would give ample opportunity to react with the nitrogen in the air.
Years ago i worked at a laser job shop and one of the things getting cut was kevlar fabric laminate into gaskets. One thing they didnt tell us was that when lasered kevlar forms lots of cyanide within minutes of cutting we all felt off and i recignized the smell as cyanide (similar to ammeretto liquor) and immediatly notified the rest of the people.to stop we aired put the factory and moved the material to a laser cutter with a better means of fume extraction rather than just venting into the factory. Nobody died or even got hospital sick though. ❤
As a youngster I was working in a plant that everyone just called „HBr“. Fascinating place with massive glassware. Interestingly I don’t recall if the floors were wood or concrete with a layer on it.
I loved the one at 7:00 where the students weren't diluting what they put down the drain. I get the image of all the pipes in the building suddenly start belching out flame and you're in a room full of sinks. *Spoiler alert:* I picture a scene from Barton Fink where you look up and there's John Goodman waiting to kill you and you're like, "Oh man, I knew I should've stayed in bed. I wish I had listened to my horoscope but I figured, 'John Goodman? He seems like such a nice guy. Why would he wanna kill me?' I underestimated astrology in a _bad_ way."
i heard phosgene can be created by if cfc based refrigeration units are involved in a fire or you are using a high speed cutter to cut open the compressor freshly cut from such unit. a magnet is a much safer way to test boots. one place you should never trust some elses work is when packing a parachute you should pack your parachute and never trust another's packing job.
I've had some experience (fortunately no mishaps!) with carbonyl fluoride (the fluorine analog of phosgene). It (and HF) are produced in large amounts when suppressing fires with hydrofluorocarbon halon replacements. My job was to set up and analyze data from an FTIR spectrometer to determine amounts of HF and COF2 generated in fire suppression. If you look up the TLV of carbonyl flouride, it is (or at least was at the time) 20 times higher than for phosgene. But I was always very suspicious of that--it might have just meant that the toxicity wasn't very well-characterized. Aside: you REALLY don't want to put any fluorinated polymers in the laser cutter!!
Can't wait for wakefield xray tubes to become affordable; gamma-ray-tier hard X-rays from a device small enough you could hide it under a nice wide lab workbench/table (about 2 medium fumehoods wide, and approximately between half and one square meter in cross section).
5:20 That one is simple to answer. "What? You need a more expensive suit?! Are you nuts?! Just use this one, it's cheap and we can buy them in bulk!! Now get back to work! You are costing the company money!!!" Anyone saying otherwise is either saving face for inspections or still working at said companies, I got lung damage from working in said companies and it's that even if you file anonymous reports they just slide them under the rugs.
I quit a makerspace because the people who owned it didn't know how to identify (and ban) dangerous materials such as self-adhesive PVC sheet aka "Con-Tact(TM) paper." Well, someone came in with some custom printed matte self-adhesive vinyl and claimed it was just paper. I had the next laser reservation, and the whole facility reeked of a horrible chlorine kind of odor. The trash next to the laser cutter was full of adhesive-backed vinyl remnants. so I left and messaged the managers about the dangers of laser-cutting "Con-Tact (TM) paper." They got snippy with me because "that wasn't Con-Tact, that was custom printed vinyl." And that makes it safe to laser cut, you buffoons? I hope she didn't get sick from the fumes, because they should've stopped her the way the staff at TechShop or Idea Fab Labs would have. I was also mad because my car had broken down so I RENTED a whole-ass SUV to drive across the Bay Area to use the laser cutter to fill a customer order. Now I couldn't meet the deadline, and I was out about $90 on car rental. I never found out what happened to the person who had been lasering vinyl for quite a while, based on the amount of scraps left over.
I have got a saying: pvc it's death for you, the machine and the environment. The kicker is that some clear pvc materials look just like pmma. My experiance with makerspaces are that they don't always have a good understanding of dangers of machines. Like people opening lathes and mills with no one else in the building. (And having only q basic first aid kit that is not suitable for industrial excedents)
When I was 12, I took chlorine gas to my school. I had asked a friend before whether or not he wanted to get some chlorine for experiments. (I tried to avoid getting bored in the afternoon so I was looking for a reason to make some cl gas.) I filled the gas into a 1,5 l plastic bottle and sealed the opening using some duct tape. And then I took it to school the day after and gave it to my friend. Firstly, the teachers didn't really notice it but my friend's mum called my dad a few days later because she was concerned about her son having chlorine gas. So he had to hand it back to me (he took it to school). Unfortunately, a classmate told the teacher in last period about it. She wasn't keen with the chlorine bottle being in the classroom to say the least and my parents were given a warning due to my noteable bad behavior. I and my parents had to hold a "nice" conversation with the principal about this incident. Luckily, I wasn't expelled from school.
I once dried dioxane by refluxing it with sodium. the dioxane was ,of course, predired with KOH and than with MgSO4 to avoid a violent reaction. at first everything was looking good, but after a while I've noticed the reaction becoming more and more violent, so I turned off the hotplate. unfortunately, I didn't used a jack, so the reflux continued until finally, the flask and the condenser loudly exploded inside the fume hood and fire erupted. luckily I had a fire extinguisher nearby so I quickly used it to put down the fire. I'm still not 100% sure on what happened, but my best guess is that because of the hygroscopic nature of dioxane, and because I didn't attached a drying tube to the condenser, the dioxane vapours were absorbing water from the air faster than the sodium could dry it. this resulted in accumlation of water, which caused a violent reaction, rapid formation of hydrogen, a spark and finally an ether-hydrogen explosion. my punishment was to clean up all of the powder from the fire extinguisher (which was everywhere).
I'm not a chemist, but I've made some chemically based ✨️mistakes✨️before. I worked as a cleaner at an rv and camping resort when I was fresh out of hs. I was, like most people that age, incredibly lazy. I'm also a chronic insomniac. Both sleep and energy were in short supply, so I'd always get incredibly tired about half way through my shift. I figured out that if I rushed the beginning half of my shift, I could get in a half hour nap before I took my lunch break. To achieve this, I'd fill a sink in the cabins with bleach and hot water, then I'd use that to clean the entire bathroom, with the notable exceptions of the toilet bowl and the mirror. Well, sleep deprivation makes you clumsy, so I should have seen it coming when I accidentally bumped the other cleaners into my bleach water. I knew about ammonia and bleach, and I also knew that both of those cleaners had ammonia, I'm also guessing there were a few other nasty combos that formed as well. I gassed that cabin so bad it was closed for the entire day, all for the want of a nap. Oops.
i barely use gloves when working with house cleaning chemicals. you'd think several chemical burns would teach me a lesson. no i just got some of my skin bleached by a stain removed. like 5 minutes ago)
I think it's worth pointing out - it's not that the radiation source nuked the circulating white blood cells from that brief exposure, its that the stems cells in his *bone marrow* got irradiated hard enough that it stopped working for long enough to not replace his white cells after 80% had already worked themselves out of circulation.
Haha I actually know the smell of phosgene, because I worked with triphosgene last year. A very frightening "I'll kill you if you smell me too much" odor. Everytime I had to weigh the triphosgene, I was trying to go as fast as possible without spilling some of it (it would have been a disaster 💀), the goal being to smell it the less I could.
When I was about 14 years old I lived in a small town in rural Brazil. Being kind of a nerd I loved to read about chemistry and physics, and one day I read in an old chemistry book in the school library about how highly nitrated compounds can become explosives. I was heavily bullied at school so I really hated it and me and a friend, who also disliked school, decided that we would try to produce some explosive to blow up the school. I thought "hey, they sell glycerin at the drug store, maybe if we get some nitric acid we can mix them and it will become nitroglycerin, right?". I was 14, I had no idea how chemical synthesis worked. I simply thought we could mix them and it would work. So, the main business in the town was a coop of dairy farmers and that friend happened to know the technician who worked at the lab that did the tests on the milk. We told him we were doing some experiments for school and we wanted to use some nitric acid for a demonstration. God knows why, dude just handed me a bottle with about 500ml of fuming nitric acid. He was an adult. He gave a 14 yo kid with ZERO idea what he was doing a bottle of fuming nitric acid. I was stunned. I started throwing nitric acid on everything I could to test it. Bugs, nails, the sidewalk outside my home, ant colonies, ... Of course I spilled it in my hand and it got all yellow for weeks. I probably inhaled a bunch of the orange-yellow fumes coming out of it. Yes I tried mixing it with glycerin in small quantities but nothing happened so we gave up blowing up the school. I eventually decided I was too clumsy for lab stuff and became a theoretical physicist.
I have lots of funny stories from undergrad as well like the day someone doing a demonstration with liquid nitrogen spilled too much of it on the floor. The liquid nitrogen went down a drain, froze and shattered a bunch of water pipes which flooded a room below were students were making experiments involving high voltage equipment. 😅 Or the day that someone decided to play a prank on the lab technician and got the little tag they put in the room with the x-ray diffraction experiment to measure the radiation dose, put inside the shielding of the x-ray machine, turned it on for a few seconds and returned it to its place. The whole building was sealed for days until they made sure there wasn't any radiation leaking anywhere. 😅
One time in highschool I got new jeans, and was rubbing them throughout the day. When i got to chemistry, my blue hands freaked the teacher out as he and I both noticed them mid lab. Got sent to the nurse, where hand soap washed it off.
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.
I do have a bunch of stories but the most infuriating one I have was when I worked with my lab partner on a final project for lab class and we did galvanisation of steel we used a nickel solution to do this and my lab partner was never the wisest person in any room and so I had to have my eye on him constantly as not even the teacher could effectively counter his lack of common sense. One day I had to leave him alone as I had a case of the bubble gut and when I came back you wouldn't believe what I saw. He had all the electrodes on the same side so no electricity could flow and he had the nickel solution in a plastic container on a Hot Plate! He was extremely lucky that the plastic container didn't melt through and instead just melted itself to the plate.
So one time i decided to make white P from red P for… well because i f ing can, so i did. I collected like 3 grams which took an enormous amount of time. Fastforward a few days and my parents are gone. Time to make the white P. My white P generator was made of a jar filled with water above 44 C (melting point of white P) and a small vile sealed with some cotton and i blowtorched the shit out of it. Note: my safety gear consisted of fireproof gloves which were just for show and… thats it. So after i blowtorched the vile filled with red P, i could see the white P forming in the vile and after about 30 secs, i decided its enough so i dropped the vile in water. But because im a stupid asshole and dont know physics, the glass broke and splashed water (likely with white P) all over the place, not on me. Next, i layed apart all my equipment, sealed the jar filled with glass, cotton and white P. Then i took the jar outside, opened it and while marveling at the molten white P, i knocked the jar over and i could see the white P smoking whilst on my pants. In full panic mode, i ripped my pants apart because my pants caught fire. Luckily , because of the water, the burns were very moderate and after checkinh everything out, no phossy jaw to this day. So kids, dont make white P, shits terrifying
I work in HVAC. when refrigerants are heated (like while unsweating brazes) they break down into phosgene, flourophosgene, and hf gas. how bad is it to inhale a little phosgene or hf gas every month over the course of decades of work? in school were even sometimes taught to smell the refrigerant in the system to see if we can smell hf, because when heated and not exposed to air (like if the system his high dome temps) the refrigerant can break down. the oil from the newer systems also turns into a nasty easy to smell acid if exposed to moisture.
I also spend hours every week in basements without radon mitigation, but I try not to think about that. I stopped smoking because of it though because apparently radon can maky your chances of smoking related cancer much higher and that was the thing that got me to quit.
I think it's best to ask OSHA about that. I don't know what services they offer, but they might have a resource office to supply information to workers.
My guess would be that some unholy combination of chemicals released by burning pvc likely breaks down the N2 gas in the atmosphere down to two N and Given there is acid produced finding a there would likely be a lot of hydrogen ions available. Im not sure where the carbon sould would come from though
Almost forgot... С Новым годом! 😜 I wish 2024 will bring us some good stuff (e.g. 1M subs to your channel), not laser-induced phosgene, AI apocalypse or nuclear war. All the best to everyone!
You would need the pvc to undergo combustion with the air. It also depends on how hot the pvc gets. In the laser cutter story, since the machine cuts stainless, the focal point gets hot enough to burn the stainless steel away (with some help of o2) so this temperate also helps 'liberate' some components from the air to form the chemicals. So perhaps the lasers in the distillation setup would not create phosgene since the setup and temperatures involved are different but I would not feel comfortable with such a set up. Making phosgene once with a laser is one time to many
Why PMMA looks like an emoji ? Do a video about chemical structures that look like emojis. Edit : 4:05 xylene. looks like an slien head. now you guys can't unsee it muahahahahaha
Happy new year! This is the first time I've heard about lasers and PVC, good to know.
6:52 Bro just _casually_ drops the "I am forklift certified" like its nothing.
Technically, formaldehyde is carbonated water.
My tap water smells like formaldehyde. Earlier in the year, I received a letter from the utility stating that it has 46.1 ppb HAA5. If environmental working group is correct, it's also really high in Chloroform, trihalomethanes, and trichloroacetic acids. Apparently these are byproducts of the treatment process, but I would speculate they are also byproducts of ineptitude.
I've been filtering my water and then distilling it for drinking purposes.
Darned formic acid too!
@@MushookieManjesus christ. It sounds like there is an excess of some sort of organic molecules in the source water. Upon ozonolysis and chlorination, the carbon reacts to form, among other things, formaldehyde and halocarbons. Note that distillation alone won't remove these - you need activated carbon filters (which it sounds like is your first step). And yeah it sounds like the water co is doing things poorly.
long water
@Hydrolysisisfun Mmmmm not quite...
It's ahh, ahh, ahh "CHHH(c)OOh" water ;P
5:06 the dupont plant in laporte is the same dupont plant that had 4 workers die back in 2014 due to methyl mercaptan exposure
Babe wake up, late night laser phosgene just dropped🔥
Personally, I've always wanted to go into Physical Chemistry and work with lasers, but stories like this keep me up at night so i think Imma just not 😭😭
Not too bad if you follow protocol and don't work with messy people 🙌
Did my PhD in Phys Chem. Nothing too scary with our lasers, it was quite fun. We did work with some pretty toxic and / or dangerous gases, I think hydrogen sulfide was the worst. We were going to do some work on WF6, arsine and ethylene oxide but me and/or the suppliers put their foot down as while we did have fume extraction, I didn't think we could safely handle those gases. Plus I found the data we were after (some IR spectra) in a database to a much better quality than we would be able to achieve.
I'm doing physical chemistry as well I don't even really touch lasers, I do have a big swirling magnet though
@@Exergonick "Fuckin' magnets?! How do they work?!"
The hot ethanol absinthe story from a previous video reminded me of an incident from when I worked at an animal feed mill. This place was disgusting and dangerous and I have many scary stories (like decommissioning a silo that contained powdered blood- potentially contaminated with mad cow disease- by being winched down inside on a harness and using a broom on the walls) but I'll stick with an absinth-themed chemical screwup. One type of feed we made was rabbit pellets and since rabbits love them some licorice, we used anethole as a flavoring additive. This was kept out on the manufacturing floor in a 55 gallon drum. While this part of the plant was full of steam and grinding machines it wasn't environmentally controlled. That meant that if it was cold outside it was cold inside at floor level. Anethole is a liquid but freezes easily into a waxy solid. To prevent this the drum was kept ready for action with an electric warming band around it. One winter day the warming band failed and the drum solidified with a big run of rabbit pellets coming up that could not wait. My supervisor and I got the great idea to bring the whole drum into the warm control so the anethole would flow again. This happened much more quickly than we imagined and as we were working on other tasks in the control room it started smelling like licorice. We assumed this meant it was working, but it was working too well. See, when they had first tried to open the tap nothing came out and after they realized it was frozen hadn't closed the tap all the way. So there was a nice puddle of anethole building in the back of the control room and giving off it's lovely vapors. We were all cracking up about it like a bunch of movie stoners when suddenly my supervisor held his hand up in front of his face and says "I am high as a f-ing kite." I was seeing tracers and time felt like it was passing strangely. Once we realized what was happening we fled the control room, ventilated it, and took the drum back out so we could clean it out. While we had been breathing the anethole vapor we felt AMAZING but the hangover was probably one of the worst headaches I've ever had.
Lacquer head knows no in betweens
Huffin' on bags of gasoline
TIL you can get high on licorice flavoring 🤪.
I actually have an industry story courtesy of my dad.
He works at a plant that manufactures, packages, and sells pesticide. This past November, there was a company there doing some welding and other maintenance on the big storage cylinders, including doing work inside of them.
At one point, one of the welders was doing some work inside a storage thing , no PPE aside from the typical welding gear, with an electric welder.
Suddenly, some wastewater started flowing into the tank. Not clean water. This is highly contaminated with whatever product they were working with that week.
Apparently the lockout tagout protocol was not followed at all, with multiple valves not being closed like they should have been. Somehow no one was fired for this incident, but Dad and I are definitely expecting a lawsuit from the welder.
9:00 as someone who has worked as a Robotics Operator I can relate to the distrust of these 'safety systems'. I still cant believe I used to always walk up under 300+ lb molds hanging in fixtures, because one day (they day before they were due to be inspected) one of the hanging fixtures snapped. The Operations guys tried to blame it on me even though I could not have done anything to prevent it and hit the e-stop as soon as my feet hit the geound from literally jumping up at the loud noise of this heavy mold falling down.
Who would have thought PVC melted into angry hexagons and other nasty stuff. Wow.
I have heard a lot of sketchy incidents and and shared a few of my own in these Chempilations .
However , an industrial x ray device that simply spits out the the yummy candy prize when struck by an object not falling from orbit , is a whole new level of sketch .
HOLY SHITE !
I once had a job where I had to become certified to work with Class IV lasers. The work required short-wavelength, high-energy photons, so the lasers were green, blue, and ultraviolet. The scariest were the UV lasers. The interesting part was I was a software developer. Normally, you don't consider writing code to be a life threatening endeavor.
@@liam3284 That's very true but I meant hazardous for the programmer.
Captain Pike: These aliens trapped us behind PVC pipes. Let's cut through them with our phasers!
Spock: Unwise, Captain.
"The pipes should not be on fire." Is definitely a quote of the day contender for me
About the pipes! It's called cured in place pipe (CIPP). It requires the existing piping to be only mostly dead, there's only one thing you can do if your piping is all dead.... well two things. You can do open cut replacement or you can do something called pipe bursting, where you take a pointy end at the head of a new run of pipe and you force it through the existing pipe, bursting the old pipe and leaving the new pipe.
I currently work at in a lab for a Pharmacutical company. We recently had an incident involving an intern and a a standard pharmacopea method for hydroxyl value. Test was fine but during clean-up everyting is trown in the same 20 L jerrycan. Including 2/3 of a fresh 2.5L bottle of acetic anhydride. The lid is screwed on and no 30 seconds later the can exploded spraying the content including pyridine and a load of acetic acid/anhydride all over the (thankfully) mostly closed fumehood. Nobody got hurt but we had to evac the whole floor as the airsystem, originaly from the 60's updated in the 90's, is sharred. Lost half a days of work and the fumehood was out for over a week.
That was no phosgene dream. That was a nightmare.
I'm an industrual electrician and I have worked quite a bit in Dow Chemical in Midland, Michigan. A buddy and I were working on a highline pulling wire when he flagged me down (he was spotting me in a lift). Confused, I come down and see our permit writer talking with him and I notice a yellowish substance crystalizing on the pipes and stairs below. Minutes later, about 10-12 more Dow guys come out of the woodwork. A to-this-day unknown substance had dripped onto his face (likely HCL). They sent him to the shower immediately after seeing that the SDS was out of date. Turns out, they had closed both tanks in that pipe run and the warming air temperature causing at least a dozen pipe flanges with the stuff in it to burst and leak. Safe to say, we went home early that day.
I tried using Freon to cool a weld. I thought I was being clever. The Freon caught on fire, which I thought wasn’t supposed to happen. The fumes were the worst I have ever experienced. I only caught a tiny, quick whiff, but my lungs hurt for a week.
@@liam3284 I’m can confirm.
oh shit, refrigerant fires are terrifying
I have some nice story about pvc. In my first job as an helper electrician I was tasked to bend some pvc pipes. We use blowtorch to soften it, since I'm relatively new to the job and with 5 minutes of training on how to bend those pvcs. Needless to say some of the pvcs I'm bending end up burning some parts of it and I was working underground with no protection what so ever. I inhaled some of the fumes of burning pvc, I can feel some burning sensation to my nose and throat but I still continued. After finishing a bundle, I noticed that I'm having a little bit of shortness of breath but I just endure it until the shift is over. To this day I still dont feel the effects of it but I'm pretty sure I'm more predisposed to having a cancer....
If the pipes in question are not already connected at one end , it is doable and they even make and sell ovens specific to this task .
But that takes money and time , 2 things not generally found on production jobs .
A heat gun is a more controllable option IME , and helps avoid burning the PVC and making Satan's Air Freshener .
Of course they sell long radius elbows aka sweeps for all the conduit sizes , but , they aren't always a practical solution in every scenario , and , they are pricey .
Use the heat gun if at all possible , and take your time .
Your lungs will thank you .
Great series for promoting safety and showing why.
11:03 wait until he learns fish meds use malachite green very routinely
The other day my dyslexia kicked in while I was attempting to create a blue hued hydrogen fire.
I thought I was using copper chloride, then instead of the aluminium, the copper hypochlorite started to bubble and the air started to smell funny.
(I used HCl for dissolving the aluminium and for a first test I tried it without any copper salts and it turned out too slow, that’s how I ended up with this weird order of adding stuff)
Luckily I was outside and I had some sussy copper sulphate based pesticide which worked surprisingly well for both the flame coloring and for breaking up the oxide layer of the aluminium.
Reminder that the self-healing grid cutting mats are made from PVC.
That's scary! Good to know.
Yikes it like exposing DCM etc to a High powered 405 nm 3 Watt laser that would break down or could break down DCM into Phosgene!
Very good info
Oi, I just watched a Plainly Difficult video about that La Porte Dupont factory!
Putting chemicals into the sink always surprises me in places that deal with chemicals regularly.
I get it for schools, the experiments don't use very dangerous substances and are only doing occasional experiments.
In our first inorganics lab in uni, I get that some stuff like dilute acids and basis could be discarded in the sink, but even that gives me pause in retrospect.
But in a professional setting? Just collect everything with some very clear exceptions. Yes, it's moderately expensive and energy intensive to do so, but burning and corroding pipes that occasionally spew HCN are no fun, either.
I have a very short list of stuff that goes down the drain: Salt water from ice baths, the invisible chemical residue on my gloves when I wash my hands, sodium carbonate and sodium bicarbonate, dilute H2O2 and dilute nitric acid - the last four are kind of more dangerous in a waste container in an organic chemistry lab then in the sink.
Well the problem with collecting everything is it needs a certain dicipline to keep wastes properly separated. As you quite rightly point out peroxide and nitric acid need special attention but as a simple example in electronics manufacture we used to use ferric chloride to etch away copper to make circuit boards. Now we also tend to use gratuitous amounts of isopropanol for cleaning ... well ... everything. I'm not certain but I suspect that if mixed ferric chloride might be able to oxidise isopropanol to acetone, and from there to some interesting organic peroxides?
Video idea: tierlist of the hardest to pronounce chemicals (I just want to see you pronouncing dichlorodiphenyltrichloromethylmethane)
Everytime I hear these stories I wonder what lies in store for me as an engineer
Phosgene with a laser? Man. I am both impressed and INTENSELY concerned
Also YIKES. My best wishes to that guy with the radation incident
It also made benzene which is carcinogenic
There are in fact thermophile microorganisms doing cell respiration with sulphur instead of oxygen. Funnily enough we'd still be breathing out CO2, iirc how the ATP synthase thing works, the analogue that sulfur would turn into is hydrogen sulfide... so yea, stinky.
Someone so inexperienced that they recognize a foldable chair as a collection of strange tubes is definitely not the person you want as a lab partner.
Phosgene is NOT scrubbed by a water aspirator - no kinetic hydrolysis. A real time phosgene scrubber is a big volumetric cylinder partially filled with n-butylamine and a couple or three inches of KOH pellets. Incoming bubbles rise through the KOH bed. Remember your generous suck-back flow trap. I was there when a grad student bench aspirator distilling POCl3 suffered a flushed toilet. Very, very awful.
Oh hey DuPont!
great track record they have with safety...
That last one about Sulfur - At the bottom of the ocean, near hydrothermal vents, there are a whole slew of creatures that survive from the Hydrogen Sulfide being emitted from those vents. Bacteria convert the H2S into other compounds to start the food chain.
About the laser story. Since the incesent i dove more into it also the chemistry behind it. What i think happens is due to the extreme heat the laser produces (it can litterally burn trough stainless steel when o2 is added.) It rips appart molecules from the air. In order to control the funes and burn the machine uses an constant air suplly to blow out the flame. This would give ample opportunity to react with the nitrogen in the air.
Gosh, I wonder what that laser woulda made outta polyvinylidene fluoride or any other fluoropolymer: HF? COF2? Eeeps!
probably both
7:23 And imagine if those pipes were PVC....😮
Years ago i worked at a laser job shop and one of the things getting cut was kevlar fabric laminate into gaskets. One thing they didnt tell us was that when lasered kevlar forms lots of cyanide within minutes of cutting we all felt off and i recignized the smell as cyanide (similar to ammeretto liquor) and immediatly notified the rest of the people.to stop we aired put the factory and moved the material to a laser cutter with a better means of fume extraction rather than just venting into the factory. Nobody died or even got hospital sick though. ❤
Plainly Difficult just had a story about that DuPont plant. Long story short, four people *died.*
As a youngster I was working in a plant that everyone just called „HBr“.
Fascinating place with massive glassware.
Interestingly I don’t recall if the floors were wood or concrete with a layer on it.
Your story compilations are the most funny and terrifying. Such a great channel.
I loved the one at 7:00 where the students weren't diluting what they put down the drain. I get the image of all the pipes in the building suddenly start belching out flame and you're in a room full of sinks. *Spoiler alert:*
I picture a scene from Barton Fink where you look up and there's John Goodman waiting to kill you and you're like, "Oh man, I knew I should've stayed in bed. I wish I had listened to my horoscope but I figured, 'John Goodman? He seems like such a nice guy. Why would he wanna kill me?' I underestimated astrology in a _bad_ way."
When the lab needs a gas attack siren 💀
i heard phosgene can be created by if cfc based refrigeration units are involved in a fire or you are using a high speed cutter to cut open the compressor freshly cut from such unit.
a magnet is a much safer way to test boots.
one place you should never trust some elses work is when packing a parachute you should pack your parachute and never trust another's packing job.
I've had some experience (fortunately no mishaps!) with carbonyl fluoride (the fluorine analog of phosgene). It (and HF) are produced in large amounts when suppressing fires with hydrofluorocarbon halon replacements. My job was to set up and analyze data from an FTIR spectrometer to determine amounts of HF and COF2 generated in fire suppression. If you look up the TLV of carbonyl flouride, it is (or at least was at the time) 20 times higher than for phosgene. But I was always very suspicious of that--it might have just meant that the toxicity wasn't very well-characterized. Aside: you REALLY don't want to put any fluorinated polymers in the laser cutter!!
That sledgehammer story is wild id imagine a sledgehammer could wear down the steel on steel toe boots if dropped repeatedly
Can't wait for wakefield xray tubes to become affordable; gamma-ray-tier hard X-rays from a device small enough you could hide it under a nice wide lab workbench/table (about 2 medium fumehoods wide, and approximately between half and one square meter in cross section).
5:20
That one is simple to answer.
"What? You need a more expensive suit?! Are you nuts?! Just use this one, it's cheap and we can buy them in bulk!! Now get back to work! You are costing the company money!!!"
Anyone saying otherwise is either saving face for inspections or still working at said companies, I got lung damage from working in said companies and it's that even if you file anonymous reports they just slide them under the rugs.
I quit a makerspace because the people who owned it didn't know how to identify (and ban) dangerous materials such as self-adhesive PVC sheet aka "Con-Tact(TM) paper." Well, someone came in with some custom printed matte self-adhesive vinyl and claimed it was just paper. I had the next laser reservation, and the whole facility reeked of a horrible chlorine kind of odor. The trash next to the laser cutter was full of adhesive-backed vinyl remnants. so I left and messaged the managers about the dangers of laser-cutting "Con-Tact (TM) paper." They got snippy with me because "that wasn't Con-Tact, that was custom printed vinyl." And that makes it safe to laser cut, you buffoons? I hope she didn't get sick from the fumes, because they should've stopped her the way the staff at TechShop or Idea Fab Labs would have. I was also mad because my car had broken down so I RENTED a whole-ass SUV to drive across the Bay Area to use the laser cutter to fill a customer order. Now I couldn't meet the deadline, and I was out about $90 on car rental. I never found out what happened to the person who had been lasering vinyl for quite a while, based on the amount of scraps left over.
I have got a saying: pvc it's death for you, the machine and the environment. The kicker is that some clear pvc materials look just like pmma.
My experiance with makerspaces are that they don't always have a good understanding of dangers of machines. Like people opening lathes and mills with no one else in the building. (And having only q basic first aid kit that is not suitable for industrial excedents)
When I was 12, I took chlorine gas to my school. I had asked a friend before whether or not he wanted to get some chlorine for experiments. (I tried to avoid getting bored in the afternoon so I was looking for a reason to make some cl gas.) I filled the gas into a 1,5 l plastic bottle and sealed the opening using some duct tape. And then I took it to school the day after and gave it to my friend. Firstly, the teachers didn't really notice it but my friend's mum called my dad a few days later because she was concerned about her son having chlorine gas. So he had to hand it back to me (he took it to school). Unfortunately, a classmate told the teacher in last period about it. She wasn't keen with the chlorine bottle being in the classroom to say the least and my parents were given a warning due to my noteable bad behavior. I and my parents had to hold a "nice" conversation with the principal about this incident. Luckily, I wasn't expelled from school.
Yeah, how DOES a 12 year old get their hands on chlorine?
We make phosgene and phosgene oxide all the time with flow chemistry, so we don't need to store cylinders of it and produce them on demand.
If you're that chemist I'll be ThatOneOddChemist
I once dried dioxane by refluxing it with sodium.
the dioxane was ,of course, predired with KOH and than with MgSO4 to avoid a violent reaction.
at first everything was looking good, but after a while I've noticed the reaction becoming more and more violent, so I turned off the hotplate.
unfortunately, I didn't used a jack, so the reflux continued until finally, the flask and the condenser loudly exploded inside the fume hood and fire erupted.
luckily I had a fire extinguisher nearby so I quickly used it to put down the fire.
I'm still not 100% sure on what happened, but my best guess is that because of the hygroscopic nature of dioxane, and because I didn't attached a drying tube to the condenser, the dioxane vapours were absorbing water from the air faster than the sodium could dry it.
this resulted in accumlation of water, which caused a violent reaction, rapid formation of hydrogen, a spark and finally an ether-hydrogen explosion.
my punishment was to clean up all of the powder from the fire extinguisher (which was everywhere).
I'm not a chemist, but I've made some chemically based ✨️mistakes✨️before. I worked as a cleaner at an rv and camping resort when I was fresh out of hs. I was, like most people that age, incredibly lazy. I'm also a chronic insomniac. Both sleep and energy were in short supply, so I'd always get incredibly tired about half way through my shift. I figured out that if I rushed the beginning half of my shift, I could get in a half hour nap before I took my lunch break. To achieve this, I'd fill a sink in the cabins with bleach and hot water, then I'd use that to clean the entire bathroom, with the notable exceptions of the toilet bowl and the mirror. Well, sleep deprivation makes you clumsy, so I should have seen it coming when I accidentally bumped the other cleaners into my bleach water. I knew about ammonia and bleach, and I also knew that both of those cleaners had ammonia, I'm also guessing there were a few other nasty combos that formed as well. I gassed that cabin so bad it was closed for the entire day, all for the want of a nap. Oops.
mmmmmyikes!
"Pipes should not be on fire." These are most wise words.
when someone said its near silent and deadly i thought of a fart
11:18 Predcessors of purple bacteria be like
i barely use gloves when working with house cleaning chemicals. you'd think several chemical burns would teach me a lesson. no
i just got some of my skin bleached by a stain removed. like 5 minutes ago)
...you know it's gonna be a doozy when the phosgene ISN'T the Yikes Awardee!
I think it's worth pointing out - it's not that the radiation source nuked the circulating white blood cells from that brief exposure, its that the stems cells in his *bone marrow* got irradiated hard enough that it stopped working for long enough to not replace his white cells after 80% had already worked themselves out of circulation.
Haha I actually know the smell of phosgene, because I worked with triphosgene last year. A very frightening "I'll kill you if you smell me too much" odor. Everytime I had to weigh the triphosgene, I was trying to go as fast as possible without spilling some of it (it would have been a disaster 💀), the goal being to smell it the less I could.
7:35 Were they using C Stoff and T Stoff in two different labs?
When I was about 14 years old I lived in a small town in rural Brazil. Being kind of a nerd I loved to read about chemistry and physics, and one day I read in an old chemistry book in the school library about how highly nitrated compounds can become explosives. I was heavily bullied at school so I really hated it and me and a friend, who also disliked school, decided that we would try to produce some explosive to blow up the school. I thought "hey, they sell glycerin at the drug store, maybe if we get some nitric acid we can mix them and it will become nitroglycerin, right?". I was 14, I had no idea how chemical synthesis worked. I simply thought we could mix them and it would work. So, the main business in the town was a coop of dairy farmers and that friend happened to know the technician who worked at the lab that did the tests on the milk. We told him we were doing some experiments for school and we wanted to use some nitric acid for a demonstration. God knows why, dude just handed me a bottle with about 500ml of fuming nitric acid. He was an adult. He gave a 14 yo kid with ZERO idea what he was doing a bottle of fuming nitric acid. I was stunned. I started throwing nitric acid on everything I could to test it. Bugs, nails, the sidewalk outside my home, ant colonies, ... Of course I spilled it in my hand and it got all yellow for weeks. I probably inhaled a bunch of the orange-yellow fumes coming out of it. Yes I tried mixing it with glycerin in small quantities but nothing happened so we gave up blowing up the school. I eventually decided I was too clumsy for lab stuff and became a theoretical physicist.
I have lots of funny stories from undergrad as well like the day someone doing a demonstration with liquid nitrogen spilled too much of it on the floor. The liquid nitrogen went down a drain, froze and shattered a bunch of water pipes which flooded a room below were students were making experiments involving high voltage equipment. 😅
Or the day that someone decided to play a prank on the lab technician and got the little tag they put in the room with the x-ray diffraction experiment to measure the radiation dose, put inside the shielding of the x-ray machine, turned it on for a few seconds and returned it to its place. The whole building was sealed for days until they made sure there wasn't any radiation leaking anywhere. 😅
Plainly Difficult just did a video about the LaPorte DuPont plant 😮
One time in highschool I got new jeans, and was rubbing them throughout the day. When i got to chemistry, my blue hands freaked the teacher out as he and I both noticed them mid lab. Got sent to the nurse, where hand soap washed it off.
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.
Welp, looks like I know what I'm going to sleep listening to.
I do have a bunch of stories but the most infuriating one I have was when I worked with my lab partner on a final project for lab class and we did galvanisation of steel we used a nickel solution to do this and my lab partner was never the wisest person in any room and so I had to have my eye on him constantly as not even the teacher could effectively counter his lack of common sense. One day I had to leave him alone as I had a case of the bubble gut and when I came back you wouldn't believe what I saw. He had all the electrodes on the same side so no electricity could flow and he had the nickel solution in a plastic container on a Hot Plate! He was extremely lucky that the plastic container didn't melt through and instead just melted itself to the plate.
I wonder if laser cutting stainless steel would lead to hexavalent chromium being formed?
So one time i decided to make white P from red P for… well because i f ing can, so i did. I collected like 3 grams which took an enormous amount of time. Fastforward a few days and my parents are gone. Time to make the white P. My white P generator was made of a jar filled with water above 44 C (melting point of white P) and a small vile sealed with some cotton and i blowtorched the shit out of it.
Note: my safety gear consisted of fireproof gloves which were just for show and… thats it.
So after i blowtorched the vile filled with red P, i could see the white P forming in the vile and after about 30 secs, i decided its enough so i dropped the vile in water. But because im a stupid asshole and dont know physics, the glass broke and splashed water (likely with white P) all over the place, not on me. Next, i layed apart all my equipment, sealed the jar filled with glass, cotton and white P. Then i took the jar outside, opened it and while marveling at the molten white P, i knocked the jar over and i could see the white P smoking whilst on my pants. In full panic mode, i ripped my pants apart because my pants caught fire. Luckily , because of the water, the burns were very moderate and after checkinh everything out, no phossy jaw to this day. So kids, dont make white P, shits terrifying
I'm pretty sure you can make x-rays without radioactive materials: just shoot electrons at metal
I work in HVAC. when refrigerants are heated (like while unsweating brazes) they break down into phosgene, flourophosgene, and hf gas. how bad is it to inhale a little phosgene or hf gas every month over the course of decades of work? in school were even sometimes taught to smell the refrigerant in the system to see if we can smell hf, because when heated and not exposed to air (like if the system his high dome temps) the refrigerant can break down. the oil from the newer systems also turns into a nasty easy to smell acid if exposed to moisture.
I also spend hours every week in basements without radon mitigation, but I try not to think about that. I stopped smoking because of it though because apparently radon can maky your chances of smoking related cancer much higher and that was the thing that got me to quit.
I think it's best to ask OSHA about that. I don't know what services they offer, but they might have a resource office to supply information to workers.
I burned my wall with a laser. It burned it to the 'moon' .
No shit given 😄
I believe polyurethane is the plastic that generates HCN when burned, and PVC produces HCl and phosgene.
My guess would be that some unholy combination of chemicals released by burning pvc likely breaks down the N2 gas in the atmosphere down to two N and Given there is acid produced finding a there would likely be a lot of hydrogen ions available. Im not sure where the carbon sould would come from though
PVC huh. I guess dolls and lasers don't mix either :V
(context: most soft vinyl/plastic dolls are made with PVC)
200 watts in a sq. mm, to myself that seems pretty impressive.
The channel Clearly Difficult, did a video on LaPorte. Dupont ended up erasing the site after deaths.
I really wanted to work in chemistry but by my badluck somehow end up working in biology.
That's basically just chemistry with extra steps.
Yesterday I almost suffocated because of DHMO.
Oh no he didn’t 🫰
Almost forgot...
С Новым годом! 😜
I wish 2024 will bring us some good stuff (e.g. 1M subs to your channel), not laser-induced phosgene, AI apocalypse or nuclear war. All the best to everyone!
This has USCSB vibes
We need more OSHA
@That Chemist There is a video on youtube about the production of hydrochloric acid from pvc by dry distillation 😅, would phosgene be an issue there?
You would need the pvc to undergo combustion with the air. It also depends on how hot the pvc gets. In the laser cutter story, since the machine cuts stainless, the focal point gets hot enough to burn the stainless steel away (with some help of o2) so this temperate also helps 'liberate' some components from the air to form the chemicals.
So perhaps the lasers in the distillation setup would not create phosgene since the setup and temperatures involved are different but I would not feel comfortable with such a set up.
Making phosgene once with a laser is one time to many
Oof size: Venti
Ya DuPont does not care about people on any level... If evil was real that would be a good place to look.
Carbonate water is CO4H4
Thiohomo Sapiens Sapiens?
Why PMMA looks like an emoji ?
Do a video about chemical structures that look like emojis.
Edit : 4:05 xylene. looks like an slien head. now you guys can't unsee it muahahahahaha
Yeeeeee
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