They FILLED Their Classroom with Nitrogen Dioxide Gas
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- เผยแพร่เมื่อ 27 ก.ย. 2024
- Only generate toxic gasses in a well-ventilated area - do not breathe the spicy air.
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Muskrats are a big furry creature that looks like a cross between a rat and a beaver. Except it’s the size of a raccoon
You might as well warn as a free public safety message what happens when someone smokes with brake cleaner. I take it that this is something like tobacco or marijuana smoking in the presence of the fumes. Those working with automotive equipment and chemicals should know better because of flammables and toxicity, but sometimes they can be as dumb as a rock.
Weird. I use that same baby dragon egg analogy. Except I use baby Hitler. Odd how I always talk about Hitler laying eggs? Well. Not if you know hitler like I know hitler.
Question ! I'm new to the channel, do you have video compilations about what laboratories or industrt do when there's a spill or anything residue related? Based on guidelines or standards, or even improvised solutions that could work on an emergency...
no source attribution? wtf?
Me, reading the title: "Well, that doesn't sound like a very good idea."
Hahahaha
Definitely for sure
SPICY AIR
Deadly Vulcan laughing gas ⛽️.
Yeah it wasn't pleasant
When I was a student at the University of Illinois, lo these many decades ago, the head of the chemistry department was Professor Gilbert P. Haight. Prof. Haight was quite a character and everybody adored him.
The highlight of the school year was his annual Christmas Lecture. Chemistry majors and, I believe, students from the University High School were given preferential admission, although anyone could attend. It was standing room only and many people got turned away at the door.
One year I managed to get in, even though I was just one of those weird Math/Computer Science guys. Gil gave his lecture and was in full swing, doing things like igniting soap bubbles filled with hydrogen (foomp!) or a stoichiometric mixture of hydrogen and oxygen (BANG!!).
At one point he held up a lump of dry ice and asked, "What would dry ice taste like?" He explained the chemistry and decided that it would be sour, due to the formation of carbonic acid. He then proceeded to pop the dry ice into his mouth, swish it around, and spit it out. He then said, "Yep, it's sour. Never do that, by the way."
😂In my high school AP Chemistry class we all got the chance to taste dry ice, it tastes absolutely disgusting though, but surely it’s sour.
I taught at a science camp this summer, and we used dry ice to turn apple juice into sparkling apple juice, by dropping a few chunks into a half-full bottle and letting the CO2 dissolve into the drink. It didn’t really improve the taste lol
Used to deal with dry ice in decently large freezer-pallet things. The air inside always reminded me of accidentally getting pool water up the nose, very much _NOT_ the sort of thing that encourages an appreciation.
The fluorine/cesium chemist has a different definition of “safe distance” than I do.
The pool story reminds me of a friend who had a moose fall into the outdoor swimming pool of his summer cottage in autumn (the ice must have been too thin to support the weight but hidden the fact that there was a pool below). When he returned in spring he found a transparent moose in his pool...
You mean the moose trap? It's supposed to do that.
The worst thing that happened in my school was just a room burning down, because somehow chemical waste got into the paper bin.
@@kingflockthewarrior202 the trash bin for paper...
Can confirm the poo in the pool story. I worked at the poll house of a YMCA one summer that had swim lessons for kids. Some of the kids that didn't want to take swim lessons figured out that if they pooped the pool it would be shut down the rest of the day while the life guards cleaned and shocked it, canceling swim lessons. This left the pool extra chlorinated for the next day. Bleached swim suits, hair, etc. And if the parents brought the pool pooper kid back for another round of swim lessons, the pool would be pooped in again.
That is also where I learned to always hold your breath when opening a chlorine container. The fumes are strong and rise up to your face quick. Granular calcium hypochlorite is no joke.
Seriously people who go to the bathroom in pools piss me off. Like seriously who wants to swim in a giant sewer?
A week ago we again had another NO2 accident. Our teacher was showing us some HNO3 and metal reactions to demonstrate passivation. Copper reacted like copper, aluminium and iron didn't react, but magnesium reacted so violently, the NO2 didn't just pour out the test tube like with Cu, but it was shooting up to the ceiling (4-5m!). I hope after this, we won't do any HNO3 experiments again, but if we do, I will have a respirator in my bag.
And that ACTUALLY looked like the thumbnail. Orange gas everywhere
If Cody’s Lab is scared of something you should be too. You will see him in the metal refining series get out of there quick when the NO₂ starts being generated
12:41 This story reminds me of a "creek" of concentrated HCl which I saw a few years ago. The plant management didn't pay much attention to safety, so they didn't repair a slightly cracked pipe with a solid flow rate of HCL, so about 3l per hour of it went to the ground and then into the sump. This situation was there for several weeks until the next major maintenance shutdown of the plant.
I'm very glad the only 'spicy water' I handle is soup with jalapenos in it
that's a speecy spicy water
For the "we can just leave the concentrated sulphuric in that pool, right"
Just have to call eating the concrete "delayed in situ neutralization"
In my high school AP chemistry we had to do a demonstration of our choice. I decided on making a small amount of nitrogen triiodide and detonating it. I did the reaction before the demonstration day so i knew how to make the compound. I tested detonating it in the back lab room and everything went fine, fun plume of purple smoke. However i totally forgot to put on my eye protection before doing so, when i walked out of the back lab room the teacher looked like he wanted to kill me for forgetting to wear them
I've had a fairly large amount of nitrogen triiodide randomly explode once, luckily I was not in the room when it happened, but little pieces of it were scattered throughout the room. It was fun finding where all of it was, as I could just pat anything in the room and it would give a snap.
I'm not even a chemist and I always read "unionised" as "un-ionised" instead of "union-ised". Which means I'm almost always wrong, since I rarely read about ionisation.
Only chemistry experiment going wrong I experienced was in high school, where the teacher decided to show us the reaction of sodium and water. Got a big glass bowl of water, eye-balled a big chunk of sodium, with the comment that it was a bit big but should be alright and put it in the water.
It started moving around rapidly, which he explained was because it released a gas. He then got a... thing to stop it from moving so he could catch the gas. Seconds later, the whole thing exploded, with glass shards and the now slightly caustic water spraying on the students in the first three rows.
Nobody was actually hurt, but man... he could have at least raised the shield in front of the students that is there for exactly these kinds of accidents...
I've heard so many sodium+water stories like that… Probably the most common educational lab incident since it's easy to pull off and usually harmless but impressive. Which causes people to underestimate it and create major bangs.
Old, bold, but not both applies in a LOT of communities. Pilots, race drivers, photographers, etc.
Bikers too. At least not without very busy guardian angels.
photographers???
@@firebird9001 Sometimes. Galen Rowell is a good example.
@@mausball ah alright, thank you
@@firebird9001 silver nitrate is explosive
Considering superglue was originally designed/intended for sealing wounds in the Vietnam war, I really wonder about its toxicity. I heard heating it a lot releases cyanide gas, and (tested) when dried, heating the bond moderately (~70 C) turns it so brittle the bond made with it just fall apart.
The surgical stuff is slightly different from the industrial stuff, I don't recall the specifics though.
@@jimsvideos7201 For a starter : The common use version may contain small glass shards or other contaminants.
@Purple Burglaralarm A few years ago I found some medical grade cyanoacrylate wound bandage in the safety supply section of Home Depot to cover a frying pan edge scorch wound on my forearm. It worked fine, but the scorch left a pale scar that is still there.
Years and years back, Band-Aid used to sell a swab-catalyzed version of this stuff, then for inexplicable reasons discontinued it. The newer stuff is liquid and hardens slowly. Maybe it was the heat factor.
@@Kualinar I'd hope for other reasons that it would have no fillers unless marked as such, for I want a very thin glue line.
@@SeekingTheLoveThatGodMeans7648 The «may contain» is not that some brand may contain contaminants. It was to mean that a batch may contain some contaminant. This tube is only glue, but, that other one just next to it contains some tiny glass shards.
yeah my teacher did also release a bunch of NO2 and say it’s not that dangerous too, but at least it didn’t fill the classroom and the classroom was well ventillated
this… is insane
I remember seeing a truck mishap like that on the USCSBs YT channel. But that was with different chemicals.
Yes, I've seen that one too. In that case, they mixed sulfuric acid and sodium hypochlorite, causing a large release of chlorine gas.
Our 1980's UK gas blender company shared a restroom with a filthy metal working company .... when their BIG HEFTY guys went in after a night on the curry and beer ... ( with a tiny pipe ) , we filled the restroom with OZONE ! ! ( cleared the smell + the guys ! ! ) ...........QED ..........
What if you needed some filthy metal?
Back in High School, during a chem lab, we were working with concentrated H2SO4, and I had a small (open) vial full of about 10mL of the acid. Well, I got up to go grab something and then when I came back, the vial was gone. Turns out, the vial somehow fell off the bench, into my backpack which was hanging off a hook below, and later that day I opened up my backpack and the acid had eaten a hole clean through the backpack and turned most of my homework into a mushy sludge.
My superglue story is less dramatic, but in the moment was still somewhat intense. I woke up unusually early one day, and decided I'd go to work (early in, early out--get to do something fun in the afternoon). After getting some things started, I took a moment to fix a broken pair of sunglasses. The frame had cracked, so a little bit of CA glue was all I needed. Long story short, I glued my hand to my desk. No one else would be in for another two hours. And I suddenly, simultaneously, *urgently* had to poop. Fortunately, most of the skin of my palm stayed where it's supposed to be.
There's some climate protesters in a porche showroom that glued themselves to the floor complaining porche didn't give them a bowl to poop into. Hilariously they do bring them food (but they aren't allowed to order themselves, no vegan soy lattes) but made no attempt to remove them. I think they're still there now as of this message.
Earlier today we were doing Grignard reactions, using diethyl ether as a solvent. We had to hand warm the test tubes and the person next to me wasn’t using their fume hood, which filled the room with diethyl ether fumes. I took the brunt of it and had to leave the room. I still feel drunk as I’m writing this.
"A large amount of radioactive monkey fecal matter of unknown origin" sounds like something you should definitely not be able to mail to someone period
Mandela effect, here I was JUST referring to some lawyers as "radioactive poop-flinging monkeys".
This video makes me say, "ONO"
When it comes to poison gases, I think NO2 gets a bit overlooked. There are a lot of incidents with it in inorganic chem labs. Even I whiffed the stuff a time or two, but always made it in the outdoors.
My dad was an oil refinery technician so he worked with some rather interesting chemicals throughout his career.
One of the worst accidents (for the rest of the family) was the time he was sprayed with propane odorant. This odorant is extremely strong. If you have ever smelled a propane leak you know what it smells like.
The odorant is extremely strong. Just 1 pint (1/8 of a gallon) is added to a railcar of propane. A railcar holds about 34000 gallons. That is a ratio of 1 part odorant to 272000 parts of propane!
Dad trued everything to get the smell out of his skin but the only thing that helped was time.
It was eyewatering to be close to him for a week and noticeable for about 3 weeks. His clothes, mom didn't even try to clean them. She just burned them, and it wasn't easy as his work uniform was, of course, fire resistant.
In another story, one of the bosses at the refinery was very unpopular. Someone took a cap full of this odorant and put it in brand new pick-up truck and closed the door. The truck, parked in the sun, got hot enough to vaporize the entire cap full.
It rendered the truck undrivable, even after the interior was gutted and sand blasted inside. In the end, this brand new truck (less than 1000 miles on it) with nothing else wrong with it had to be scrapped because the smell had gotten into the metal and could not be removed.
Here’s a tip on how to eat organic sulfuric compounds.
1. Don’t be a vampire
2. Make sure it is a safe organism
3. Analyze the bulb
4. If it is not not a member of Narcissus, you’re good to go.
5. Worse case scenario, weaken with heat.
In other words.
תאכל/י שום
Was at work we found a bottle we thought was drain cleaner, but the labels were melted so we couldn’t tell. Being smart, we tried to use gloves to move it to a bucket where we could be sure it wouldn’t leak, instead it reacted with the nitrile gloves which made them heat up rapidly to a very uncomfortable temperature. I stripped off the gloves fast enough but a tiny amount hit my legs. Despite immediate decontamination, I ended up with a bunch of tiny burns and missing patches of hair that healed fully within a few weeks. We still didn’t have any idea what was in the bottle, but we labelled it “this eats skin, do not touch”.
Wtf
You're pretty screwed when its own label has melted off. I could do with some of that for my drains...
The second I heard caesium my eyes were like dinner plates. I may only have a hs chem education, but my chemistry teacher instilled a hefty fear of that group.
There are some truly insane “large amounts of chemicals” stories from the shipping industry (I’m talking about the one with actual ships, not the generic transportation industry). I’ve never been involved with any, but because the quantities are measured in thousands of tons, sometimes the reactions get really, really big. Like, “the ship exploded” big.
The muskrat thing is probably some strange situation that led to a lawsuit or fear of a lawsuit so they decided to put a stupid warning on it.
Not my story, but my Chem teacher in high school told us a story about one of the main reasons why you’re not supposed to eat or chew gum in the lab. Basically, some guy was working, alone, in a lab, and was chewing gum. There was some white powder on the table, which he was 99.9999% sure was sucrose, so he dipped his gum in it, and bit down. However, it wasn’t sugar: it was something else, something explosive (I believe it was white phosphorus or something), and the other explosion BLEW OFF HIS ENTIRE LOWER JAW and killed him instantly. The homicide detective who investigated the death said that in all his years, that is the most gruesome thing he’d ever seen. Pretty messed up.
Oh and personally, I have some Fluoroantimonic acid, and while working with it, it burned through my KEVLAR GLOVE and ate through the skin on the back of my right hand. It’s since been more or less healed, but that HURT. Plus it’s super volatile, so the sensation of getting burned by what was almost a vapor was somewhat strange.
we have a similar saying in the fire service. “there are old firefighters and bold firefighters, but no old bold firefighters”
I can add another "school horror story" involving gas releases here. So, I went to a school with a single fume hood we used for any demos involving gasses or stuff like that. This was supposed to be a top of the line hood that was really new since the school had just moved buildings and bought a ton of fancy new toys for their classrooms (including a plastic vacuum former and a literal industrial bandsaw for the Craft, Design, Technology classroom to put this into perspective).
Now the teacher for this class was showing us metal reactions and decided to demonstrate with an Aluminium Iodine reaction. This involved placing a LARGE pile of powdered aluminium in the fume hood and adding several pipettes of iodine solution to it (after the first one didn't immediately react, so he added more I guess). Needless to say, the reaction starts off and we get to watch the sunlight from the window behind the fume hood shine through this lovely reddish purple iodine gas. Then... One of us looked up. Turns out the fume hood was running at max and yet the purple smoke was starting to flow out of the top vents nontheless.
Myself and the others who knew that "spooky purple smoke is probably bad" booked it out of the room followed closely by the teacher who shoved a towel under the door to stop it from leaking into the rest of the school. The rest of us were treated to the sight through the door's small window of a purple haze in the science lab.
Needless to say, we weren't allowed back into that classroom for a couple of weeks. And when we were, any exposed wood like shelves or the sides of books was stained with purplish black from the iodine reactions.
He never did that demo again.
Me seeing thumbnail pic : THIS IS GOING TO BE GOOD!!!!!
As a “hobby level” welder, I’ve worked with acetylene for many years. My first “experience” with it was in a 6th grade shop class. During an after hours demonstration, the teacher filled a black garbage bag with acetylene and oxygen. It was set off by a candle on a stick (luckily outside). After we all picked ourselves off the ground, i developed the greatest respect for energetic mixtures.
The last one "unionized" got me!!
Isaac Asimov used that one in an old book, I don't remember the title. I think the chapter was "To Tell a Chemist". The questions to tell a chemist were (from memory so not a quote):
- Pronounce "unionized".
- What is a mole?
Some Google searching reveals the title to be "Asimov on Chemistry". Apparently there is also a chapter "Death in the Laboratory" which has a lot about Fluorine.
I remember trying to preform electrolysis on a nail using salt as an electrolyte. While the reaction was going, the water turned a hazy teal and, in my infinite wisdom, I got a bunch of it on my unshielded hands while cleaning. From what I can deduce, none of it was stainless steel, so the risk of Hexavalent Chromium is low, but the water had a very very faint yellow tinge which could either be iron oxides in the water or incredibly dilute chromate compounds. It still haunts me to this day whether or not I gave myself skin cancer on my hands.
The color its likely due to chlorine gas generated in the electrolysis of the NaCl and a mix of iron oxides/hydroxide and iron chloride, YOU WILL BE FINE. I have done the reaction many many times usually to obtain low quality hydrogen (it contains lots of Cl2 and O2), and the conditions always destroy any Fe containing electrodes even stainless steel (platinum works quite well though, but is really expensive). I have never found significant amount of chromium in solution.
you'd be hard pressed to find a pool noodle that DIDNT have a bite taken out of it. I have absolutely no idea why
Re kids eating "pool noodles". I hadn't heard that term before and had a mounting sense of dread and horror that it was a euphemism. After looking it up I am very relieved.
Finally, A post I feel early enough to share a story from my highschool days: My freshman year of high school, we had a teacher who was a great guy, loved doing fun experiments, as it was a few years back i dont remember the exact concentration of the acids, but he was teaching us how to use them safely, proper ppe and how to use the emergency shower etc. When he decided to pick up the acids, you could already see how dry the skin on the back of his hands was from earlier, then proceeded to use pipettes to drip dilute HCl and dilute Sulfuric acid onto the back of his hand, while in an attempt to show us what would happen if we got splashed without gloves or on bare skin, he was fine. Fun experiments were had later on but i never took off my gloves or lab coat when doing labs with acids especially since i have dry skin naturally
I have some stories from my school.
The teacher told us about radioactive materials that the school has or had. One day they decided that radioactivity is too dangerous and threw away the key to the closet with all of the stuff in it. Noone knows what happened to all of that afterwards.
One day we did some experiments with acids. In one we put seashells and powdered marble into HCl. We measured the time it takes for it to dissolve and compared the times. The first experiment went normal. Then we switched to a higher concentration of HCl (the teacher put multiple bottles of it with different concentrations on a table for us to try). It reacted violently and HCl splashed all over the table. It only happened to my group and not to the others. Nobody was hit but it was a bit scary.
Burnt steak and rotten tomatoes sound like they're smelling their own nose falling apart
That chemist hates dragons D:
Last year me and my (frankly awful) high school class were doing some simple chemistry. I dont know what grade it translates to where you live, but we're 9th grade here in australia. This was a general science class, not elective, so everyone has to do it including the people that dont want to and definitely shouldn't. anyways, we were doing a simple mixture of Sodium Hydroxide and Hydrochloric Acid and measuring pH. In groups of course. Surely nothing could go wrong, but the class moron (in my group of course) pours Sodium Hydroxide all over the bench. Pours, not spills. He then grabs a permanent marker and writes 'ACID' on the table with a big arrow pointing to the giant puddle of not acid. He then proceeds to spread the sodium hydroxide with his bear hands, giving him awful chemical burns and I didn't see him for weeks. I have no idea how he was allowed to touch the chemicals, let alone do all of this. I just wanted to neutralize some acid.
i prefer nitrous
lol
🥴👍
Just remember to take your B vitamins 😅
A teacher of ours demonstrated acetylene by getting a big paper roll (the ones they use in paper mills to roll the paper onto), hammering a large wood plug into one end and drilling an ignition hole into it close to the wood plug. He then stuffed a towel into the other end of the tube, filled the tube with acetylene, put it onto his shoulder like a bazooka, pointed it at the door and gave fire. At exactly this moment, the door opened and the principal came in. BOOOOOM! The towel flew through the air and hit the principal in the face. We were in stitches and the teacher just stood there with the smoking tube on his shoulder. The towel slid off a very upset principal's face and he said: "Mr. Soandso, I need to talk to you!". Turned around on his heels with the sheepishly looking teacher in tow and we heard him yell in the hallway. The teacher is now the principal of this school...:)
When my brother was in his first year of the Swedish equivalent to high-school (technical/engineering program) he had a welding and lathing course that was held in the industrial machining halls, maybe half a kilometre away from the main school grounds. One day his welding/lathing teacher asked him if he could carry an ancient looking vial with chemicals back to the main school premises and give it to the chemistry teacher for identification and disposal. He said "sure" and asked his teacher what the vial supposedly contained. His teacher said "nitroglycerin", like it was no big deal, gave my brother the vial and then walked away. My brother was obviously terrified and walked the couple of hundred meters back to the school handling the vial as carefully as possible. When my brother finally made it to the chemistry lab to give the vial to his chemistry teacher and explain to him what he was supposed to do with the vial, his chemistry teacher laughed so hard! He told my brother that the welding/lathing teacher used to pull this prank on unexpecting students whenever he needed old chemicals disposed of (which needed to be done in the chemistry lab). My brother was not amused 😂 I don't remember exactly what the chemical in the vial actually was, but I think it was some kind of acid.
I remember once, I think I was 17, when I was searching my parents' garage for ethanol to clean something. We had a bunch of cleaners from the same brand all in the same place, both old and new. I clearly remember picking up a bottle that I thought was ethanol, but wasn't sure. My dad told me it wasn't ethanol, buuut I wanted to make sure. So what did I do? I stuck my nose really close to the bottle and took a big whiff. I quickly realised that it wasn't ethanol, but a pretty concentrated ammoniumhydroxide solution (NH₃). I almost passed out, and I lost most of the hair in my nose. I remember not being able to breathe through my nose without pain for about a week and not being able to smell for about a month. Luckily, I didn't get any long-lasting damage.
I have an better grasp of chemistry than your average john doe, so I greatly enjoy this content despite the deep technical being greek to me.
One thing I recalled thinking from the toxic chemicals tier list is about how different our perspectives are due to situational experience with particular chemicals. For example, ammonia was rated as rather tame compared to some of the more nasty contenders. This is certainly true on the face of it, but in my experience working in heavy industry, it can be those more mundane chemicals that are the most sinister. Ammonia in particular is common in large tonnages for a variety of refinery applications. I worked for a time in a phosphate refinery which utilized large tonnages of anhydrous ammonia, as well as sulfuric acid and some derivatives thereof(sulfur dioxide and hydrogen di-sulfide). While not innocuous by any means, many people work comfortably surrounded by tons of these materials in industrial environments. Anhydrous ammonia is a particularly scary case, as without dilution it will scorch the receptors in your nose before you can smells it, making it undetectable until you’ve taken a extremely dangerous dose.
Not to take away from the supervillain levels of danger presented by things like phosgene, HF, and other comparable chemicals. I find it interesting how the perspective of what is “dangerous” is completey dependent on how you are most likely to come into contact with it. Carefully in a lab vs. casually on a maintenance contract.
lots of anhydrous ammonia used in refrigeration too. like 40 tons on a site. it's excellent at what it does, just a bit of a swine when it gets out.
Absolute power corrupts absolutely
Can be transliterated to
Absolute volatility corrupts absolutely
If I see a leak in an acid vat I'm calling OSHA
NO2 can kill with delay. I can’t believe anyone would do this.
This makes my 50ml HCl spill tame
Nobody is going to explain the muskrats?
Rabies risk. If a rodent is coming towards you instead of running away there's something wrong.
With that NO2 incident, they could have avoided it together by capping the test tube with wool soaked in sodium hydroxide.
Well I work at a semiconductor manf plant. There are huge tanks (50000 gallons) of unstabilized 35pcnt h2o2, giant drums of dry HCl gas, flourine in all its forms, arsine phosphine Germane nat gas IPA etc. I work around them all day in the subfab and fab and have never seen an accident. I myself am always professional with ppe and procedures.
Which is what makes me wonder why I seem to be so stupid when at home: i wanted to distill some drain cleaner 96pcnt sulfuric acid to be pure in my backyard, got the whole setup running and went inside. Half an hour later someone at home noticed white fog outside... Yeah i had boiled off about 500ml of sulfuric, that cloud was epic. Etched everything metal, the tree lost some leaves. Got no complaints from neighbors though (they weren't home) and i won't be that stupid or reckless again, felt really bad. So weird: safe at work but not at home..
Because at work you have the constant scrutiny and threat of consequences, maybe. Wild and interesting stories nonetheless.
Good grief I would watch that because nobody knows what could stray into a backyard -- even if it has a locked fence.
I feel compelled to put on gloves if I'm working with even the most benign things at work (Dusty boxes? Let me get my gloves!) But I just free pour the worst things at home.
Remind me of org chem lab in my 1st year college. One friend sniffed brownish gas and ended up with nose bleed for hours.
Some reaction in warm water bath without film hood.
Nitrogen Dioxide.
Rule 1 is surely, 'don't sniff the pretty colourful gas'
You have old pilots, and bold pilots, but no old bold pilots.
Thanks! Awesome channel! I love the dragon analogy! I'll have to steal that (with credits of course!).
Cyanoacrylate needs water to cure/react. Very possible that the drop of super glue became encapsulated on contact, with a cured shell surrounding the liquid glue.
3:49 we use dry ice in acetone when we do vacuum distillations, but we don't do it on pure chemicals, except validating with reagent hexadecane
For the cold trap*
I remember the USCSB has an investigation report on a time when a tanker was improperly unloaded and ended up mixing something chlorine containing and I think sulfuric acid which reacted to form a dense cloud of chlorine gas which prevented the truck operator from stopping the transfer and leading to several injuries.
As an emergency department physician, I often used to see kids who had drunk household cleaners. Their parents used to rush in, panicked, with a child under one arm and a bottle in the other hand. We had access to a large database of common products and what to do for people who ingested them, but one day a child came in who had drunk some kitchen cleaner that wasn't listed and didn't have a list of ingredients on the bottle either. The label suggested that I contact the supermarket helpline for further information, so I opened an excruciatingly slow 'web-chat' to ask them what was in it. After what seemed like an age the reply came: 'We don't know what the ingredients of the product are, but if you take the child to ED they will know what to do.' Then they signed off. It's true that we thought we knew what to do and the child was fine, but it would have been nice to know for certain.
It was quite common for people to attend ED after being exposed to unknown substances. One patient had spilled a rust remover over his arm. Fearing HF acid burns I searched for the material data safety sheet online, and found that I had to Email the manufacturer to access it. They replied with the pdf attached - over a week later.
Anyway, my top tip is not to keep superglue vials or vape refills in the bathroom on the same shelf as your eyedrops.
NOOOOOO . . . Poor dragons! 🐲
Foundry story : I was melting copper in my garage with an electric foundry, and as I was depositing cut copper pipe into the already melted copper, I neglected to realize there was a spiderweb inside one of the pipes. Now, spiderwebs contain condensation, and room temperature water introduced to a 1200C crucible filled with molten copper is not a great time. The entire crucible spat out its contents, flying 3 inches past the side of my face and splattering on a nearby wall. I was wearing PPE but likely would have lost an eye if it had just get a little to the right.
Probably a fat spider in there too.
@@mandowarrior123 spider based cupric alloy lmfao
I am the opposite of proud of this, buuut...
My biggest chemistry whoopsie involves both pharmacology and physical chemistry. It happened many years ago. At the time, I had recently been put on a selective serotonin reuptake inhibitor for anxiety and depression. Because my nervous system was adjusting to the medication, I was slightly hypomanic: excessive energy, overconfidence, and a sense of invincibility. This led directly to a shockingly unwise experiment that very nearly ended with me blind or dead: I decided that I would attempt to make supercritical carbon dioxide. In my kitchen. In a glass vessel. That glass vessel being a soy-sauce bottle which I had emptied and secured the plastic lid of with a hose clamp, after charging with dry ice. I don't know what pressure the bottle reached, but it was high enough for the CO2 to liquefy, so it was several bar, at least. I was saved initially by a steady leak from the cap. When I tightened the hose clamp to secure that leak, my common sense (very, very belatedly) started kicking in, and I realized that I had a glass bottle whose pressure was rapidly increasing, and which I realized I should not have been anywhere near. Realizing the enormity and stupidity of my mistake, I placed the highly pressurized glass bottle in the kitchen sink and started filling the sink with water to cushion any possible explosion. To make matters worse, though, in my panic, I turned on the hot water rather than the cold water, which no doubt made the pressure rise even faster.
Of course, the bottle exploded. I couldn't hear anything but ringing for about thirty seconds, and the whole kitchen was sprayed with water and broken glass, and blanketed in fog. The explosion was intense enough that glass shrapnel scratched the stainless-steel sink and left deep scratches in the cabinet and ceiling above the sink. If I'd been leaning over that sink, or if the bottle had suddenly exploded any other time (which was entirely possible), I would've been blasted with glass shrapnel. The *best-case* scenario would've been serious glass-shrapnel injuries and probably blindness, but that shrapnel could easily have punctured something important.
First NO2 story: They shouldn't be working with nitric acid in a poorly ventilated room and no fume hood at all, let alone reacting it so that it releases large quantities of NO2.
I used to bite pool noodles too when I was a kid, but not swallow!
Alright Mr Clinton. I'm sure you didn't have sexual relations with that woman either.
@@mandowarrior123 Ok that was pretty clever
In physics all you have is problems. You have problems in chemistry as well, but you also have solutions.
Muskrats bite. If you use one of those on a lake and it's near a muskrat, they might bite it and bye bye inflatable.
The story at 9:50, I had something similar happen, but on a smaller scale thankfully, the main issue ended up that the relays that controlled the pumps on the pool chemical system had failed closed (mechanical relays can and will fail, many times in the closed position) and it dumped all 15 gallons of chlorine into the pool... replaced the relays with solid state relays and it's been working great since.
Damn that story sounds hype! I sure wish my classroom was filled with nitrogen dioxide gas 😎
I once accidentally flooded my classroom...
We wanted to extract essential oils from oranges in chem class. So we did a steam distillation and I had to set up the cooler. So I proceeded to plug in the tube into the tap on my table and put the output of the cooler into the overflow drain of the sink. I thought this was clever because the tube couldn't fly around and spray water everywhere. So we run the distillation for like ten minutes before we notice this giant puddle on the floor. Turns out the overflow of the sink leads to a hole in the floor for some stupid reason. Teacher of the classroom below came into ours and asked about water dripping from the ceiling. Ended up creating a big ass water stain down there.
NOx gasses and small problems building up over time. I used to have a hobby/side gig of slicing, polishing, and then etching Ni/Fe meteorites with dilute nitric acid. I was doing this in my apartment, so my best "well ventilated" area was the bathroom. On busy occasions the fumes would get too much, so I'd throw on my military issued gas mask and gloves. "I" was fine. But the bathroom, being a warm humid environment on many occasions, did not fare so well. After a few weeks the axle on the vent fan corroded all the way through, and midway through one job I was startled by the sound of a squeeling screeching runaway fan motor and a loose fan rattling and shattering in the housing. I spilled a few gallons of 70% nitric acid into the tray/sink/floor/toilet/everywhere with some fresh slabs and tools and god knows what under the sink, and my bathroom quickly filled with brown gas so thick I couldn't hardly see. Props to MilSpec CBRN gear! I was protected from the gas, but I immediately became concerned that the abundance of brownish red in the room might be displacing the air, so I dumped everything into the sink, and made a rapid egress, and crammed a wet towel under the door. It took over 6 hours before we could get back in the bathroom. By that time every piece of exposed metal, plumbing, electric socket, wiring, screws, nails, and even the edges of the mirror, and the doorknob were etched/corroded/rusted/eaten away, and one of my exposed meteorite slabs was "fuzzy" red.
A local pool took a bulk delivery of what was supposed to be chlorine but turned out was acetic acid. Upon pumping the acid into the chlorine tank it released a large amount of chlorine gas causing injury to some of the guests and staff.
Were they using chlorine gas or hypochlorite?
fired!? that should get a teacher ARRESTED
I remember once I had some ethanol in a brown plastic bottle, and I just got home after a very long camping trip, so I went to grab a dark wooden bottle full of water since I was super thirsty. You can see where it goes from here, me, already being dehydrated, drank 98% alcohol. Thankfully I spat it right out, but it took a second so some of it did absorb into my mouth
NO2 filled room? Omg...... looming death and destruction!
They didn't do the thermodynamics math ahead of time for the intended cesium fluoride? Oh good grief.
Everybody welcome back substitute Stubby!
I have 2 stories that happened in my class when I was in school. For most of the class, this was their first time they were exposed to chemistry in school.
During one lesson, we had to make a reaction (I don't remember which one) that needed one or two drops of concentrated sulfuric acid as a catalyst. Since it was 98% acid, the teacher put in in the fume hood and gave small amounts to the students who needed it so that she could keep an eye on it.
Then one of my classmates asked the teacher for something that she had to get from another room.
While she left, another classmate took the entire bottle of acid to his table (he is a smart guy, he just didn't think this through). He then accidently knocked the bottle over and got sulfuric acid all over the floor and his pants. The teacher was shocked and immediatly sent him to the bathroom to take off his pants and wash his legs.
His pants were totally gone and he had to go home with a lab coat tied around his waist. His legs were completly fine though.
Another time we tried to make soap by heating some oil with sodium hydroxide. We needed to constanty stir the mixture so it wouldn't burn.
One of my classmates (not the same from before) left his mixture unattended for one, maybe two minutes. Enough time for it to create smoke and a horrible smell similar to burning plastic.
I opened the window and shortly after the fire alarm went off. 5-6 firetrucks, 3 ambulances and one police car arrived at the scene.
The teacher then told us that the last time one of her classes had triggered the fire alarm was 23 years ago. And we were her final class before she retired which makes this story even funnier.
Best way to end a chemistry lesson for sure.
Imagine you are a firefighter and get a call that a school is burning. You arrive at the scene and see no fire. All you see are 60-80 students, 12 of which are wearing lab coats. I wonder who might have triggered the alarm.....
Try pot ash and animal fat like a civilized person!
hyperactive smoke alarm, jeez. they sent 6 firetucks without the first clue what was happening??
As long as you have 20-25% oxygen in the air you will be fine!
The unexpected alliance between peta and the NRC trying to track down who irradiated monkeys
this isnt an irl thing, but my oc sleeps in the same room where they synthesize evil poisons from dubious materials to then vaporize and use in combat
Reminds me of when I burned contact cleaner which is basically acid in a spray bottle, for some reason I got curious and decided to use a little as a flamethrower. Now I wasn't completely thick headed and was doing it outside, but I did it with the wind blowing towards be and I breathed in some acid. Throat hurt and lungs were irritated for a few days but I was okay otherwise.
very new to this channel and i gotta say, these stories are great. i dont have a lot of chemistry related stories, but a couple that came to mind were from pre-ap and ap chem. one of them was pre-ap, and i forget exactly what we were doing, but i believe it had something to do with measuring the concentration of blue dye in differently diluted samples of gatorade based on the blue light reflected from the dye. i distinctly remember one kid literally drank gatorade from one of the containers and our teacher freaked out bc these same containers would later be used in the same technique to find the concentration of a blue-colored chemical...in a solution of nitric acid. amazingly enough, i ALSO remember hearing this same kid in ap chem the next year panicking with his lab partner bc one of them had spilled a drop of 12 molar acid (forget exactly which kind) and he said "get a napkin! a 12 molar napkin!" hope that kids doing alright wherever he is, lol.
Now fill it with nitrous oxide
Noo!
Ok so the supidest thing I ever did was make copper thermite. I used a mortar and pestle to prepare about 10gs. So there i was testing out just a small amount about 0.1g. It made a nice bright flash. Cool! So i repeated the test with like 0.5g. I touched it with the burning spilnt. And then i saw nothing for like 20 seconds because the genius i was did the test close to the mortar and i gues a spark got in it and set the whole thing of.
Anyway so as my vision slowly returned i was looking at my hand coz it hurt. It looked black. I'm like no way did I burnt my hand so severly that it actualy turned black. But I'm lookin at it and it's fully black. Than it hit me that it was only copper dioxie.
Than for good measure I decided to disolve the copper from the mortar with HCl and Hydrogen peroxide and made a lot of Chlorine gas some of wich i breathed in.
At least i didn't suffer any lasting harm.
TLDR I tought I burned my hand black so I decided to use Chlorine on myself.
👀👀👀
The brain damage had already been done sometime prior xD i stapled my thumb once trying to unjam it if its any consolation.
as a recently Ex-6th grader; Yeah, Human stupidity peaks at that age lol
Just a minor but personal one: when I was in junior high I grew crystals of Copper (II) Sulfate Pentahydride as a side project. Mine ended up not looking very aesthetic as some others did, and as the dumb and sentimental 9th grader I decided to taste these crystals since they did not look perfect (and cannot be put on display at the annual science fair). What happened in the following week is that whenever I replenish my water bottle, I dissolved a small piece of CuSO4 crystal into my water bottle AND PROCEED TO DRINK IT (btw tastes bitter resulting from both the sulfate and especially the copper (II), actually tasted like US pennies). I did this for the rest of the week until I finally decided to look up Copper (II) poisoning and never did that again...but good old times lol
You should be nominated for a Darwin Award
*looks at hands* Maybe I am a plumber
NO2 smells like chlorine gas to me
Yeah it hits similar for me too - it’s more like bromine though
@@That_Chemist that's interesting, I guess chemicals just smell different to different people. I've seen people who swear chloroform smells like wintergreen but to me it just smells sickeningly sweet
"I didn't feel any smell" 🤦
This story is really tame in comparison to those in this video, although I thought it was still worth mentioning...
Last week we were doing a physics practical for a mark (I'm in the second year of high-school) and the idea was that we would measure the conductivity of different concentrations of saltwater, by putting two electrolytes (I think that's what they are called) into the saltwater and measuring the current and voltage. It was pretty easy, but the electricity split the NaCl and the room was immediately smelling very strongly of pool.
The worst part is that although the classroom we were in had enormous windows to vent all of the gas out, the teacher refused to open them because "we just closed them, because it was getting cold"
I have asthma and of course this was the day I forgot my inhaler at home, but I remembered that I had a face mask with me so I was fine, since it was thick enough to block the smell.
Still I don't get why they couldn't just open an effing window so that people could breathe comfortably...
18 ppm free chlorine? No big deal whatsoever.
I really wanted to become a chemist before I got extremely disabled, my mom would joke that I would cause a massive lab disaster and honestly that is on par for what I behaved like back then
Sorry to hear about your condition :(
ב''ה, ways to do that but for the entire Earth in exquisite tribute to the architects of Bhopal?
Perhaps a simple reaction with seawater?