Which Chemical is the Most Risky?

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Published 2022-10-26
Which chemicals carry the greatest risks? In this episode I discuss some compounds with the highest possible NFPA ratings, and we determine which ones are the most risky!

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Speaking of risky, I have to say that molotay is remarkable.

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References:
Graduated Cylinder History Video -    • Who was the real inventor of the Grad...  
Hamilton Morris Podcast Episode - www.patreon.com/posts/73789212
Methylhydrazine Mycotoxin Video -    • The Science of Fungal Toxins  
nBuLi Titration - doi.org/10.1016/S0022-328X(97)00143-5
Ether Peroxide Video -    • How Peroxides Form in Common Reagents  
NileRed Magnesium Silicide -    • Making Magnesium Silicide and Explosi...  
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Molecules for this tierlist - tert-Butyl hydroperoxide, cyanogen, propargyl bromide, arsine, monomethylhydrazine, diazomethane, nickel tetracarbonyl, hydrogen cyanide, tert-butyllithium, acetaldehyde, trimethylaluminum, acrylonitrile, stibine, triethylaluminum, buli, butadiene, germane, ethylene oxide, TFE, trichlorosilane, pentaborane(9), diethyl ether hydroperoxide, dichlorosilane, vinyl chloride, diborane, picric acid, diethylaluminum chloride, silane

Tierlist Playlist -    • Chemistry Tierlists  

All Comments (21)
  • @Tothro
    11:58 Excuse you but, the mitochondria is the powerhouse of the cell ☝
  • @jhawley031
    Id love a 4,4,4 NFPA teir list. Were its just a teir list of 4,4,4 chemicals and how deserving of that 4,4,4 rating it is. S teir would be anything that you think transcends the 4 4 4 rating lol. Basically a list of things you'd hope to never even see irl.
  • I literally have 0 chemistry knowledge but for some reason I find these tier lists absolutely fascinating. Love the content
  • Today I learned they should have just filmed 1000 ways to die at a semiconductor facility as a bottle movie.
  • @eier5472
    COOH, as in Carboxylic Acid: Mr Incredible is content COOH, as in Organic Hydroperoxide: Mr Incredible becomes uncanny
  • @morgan0
    would be cool to see a video on substances classified as safe that you really doubt are actually safe
  • @AiOinc1
    I've always appreciated the saying "If you are close enough to read a 4 in a fire diamond, you are too close"
  • 'US Stock exchange of the cell' - That's a new one EDIT: Seeing Picric acid reminded me of something I was told recently by one of my teachers. This happened at my secondary school, before I was there but I heard this my from chemistry teacher. One of the chemistry teachers and a technician made a batch of Picric acid, not sure why they did, but they did. They must not have known either, as a few years later the bottle was discovered and understandably, no one wanted to touch it. The school ended up having to get a specialist in to detonate it safely.
  • @rubixtheslime
    As a non-chemist, if this channel has taught me anything it's this: As dangerous as chemistry looks, it's even more dangerous than that, and taking a risk is really not an option. I work as a custodian and after I stated watching your channel I've been getting more and more careful about chemicals I work with. At this point, unless I know exactly what a chemical is and does, and even after that in many cases, I treat it like it's radioactive superdeath explodium. Same goes for chemistry knowledge. I may know more than the average citizen, but I'm better off erring on assuming I know jack. Because misinformation is extra dangerous in chemistry. But with all that said, of course thing go boom is fun. It's just that it's even more fun when you live long enough to enjoy it twice. Did I pass?
  • I'd love to see a tier list on theorized chemicals. ie, chemicals that have only been theorized to exist but have never been synthesized. An example would be Octaazacubane.
  • Picral is a (formerly) popular etchant used in metallography containing Picric Acid. I work at a site that has been established since the 1940s and while moving one of the old labs, someone found a jar of crystallized Picric Acid. The guy who was called to safely move it only had one arm.
  • Vinyl chloride is currently important, as the railroad accident in East Palestine, Ohio included a traincar of vinyl chloride, currently still burning and polluting the environment. People are reporting chickens and farm animals dying. It also can cause a rare form of liver cancer.
  • @chinmitten
    I just interrupted my chemist girlfriend playing The Sims In bed at 12am to ask how bad peroxides with COOH linkers were. She’s not happy with me but said peroxides are quite explosive on their own and I need to shut up ☹️
  • I nominate chlorine trifluoride for an honorary mention. Sure it's technically on 4-0-4 but oh what wonderfully vigorous reactions it has with, well, nearly everything that hasn't already been fluorinated. Oh and hydrolysis produces HF :)
  • @ZergZfTw
    Fun and slightly terrifying fact, back in the 1960s, some enterprising drag racing teams experimented with mixing hydrazine and nitromethane for their racing fuel. It went about as well as you would expect.
  • @GodApocalypse
    A few years back i worked for a waste disposal company that dealt with hazardous waste. My job was to categorize and prepare chemicals for safe transport. The mention of picric acid brought back countless memories of forgotten, crystallized and crusty containers that had to be carefully "watered". Also the amount of time bombs i encountered in universities and schools smh.... Chem teachers, professors and pharmaceutical lab assistants are sometimes pretty sloppy in the maintenance of such stuff. Also had to deal with many containers with other lethal/dangerous stuff. Work was intense and interesting (and lowkey life threatening). Pay was way too low tho (about 1600€ net per month ) Dunno why i worked for whole two years there.
  • @VerdyBerdy
    "I like the smell of this." "its also a known carcinogen"
  • Back in the early 80s my buddy was the deputy chief of security for a well know explosives company. He was trying to recruit me because I was both a firefighter and EMT. When he gave me a tour of the facility we came to a building where there was as NFPA 4 4 4 sign with the bottom block showing the symbols meaning no water and no foam .He obviously forgot I could read the sign. That and the fact that the lab bunkers had roofs with Jack's so that they could jack them back down after an accident convinced me to decline his offer.. The chemical was pure lead azide
  • Silane was once included as a chemical in UK A level prep classes. At the end of the course, only two students out of a class of twenty or thirty turned up for the final prep class, I was one of them. Much against the rules, we were left to complete the last class prep on our own. We manufactured a whole class worth of magnesium silicide, before realising our mistake. We tried to flush the excess evidence down one of the lab sinks. Later, as part of a different experiment, we emptied a titration tube of HCL down the same sink. In those days the sinks were fitted with a heavy wooden lids, with a small hole in it for the tap hoze rubber tube to drip through. After a few seconds of adding the acid, the sink wooden lid was blown into the air with a loud bang, denting the ceiling tiles, and bending the tap. The lab supervised rushed into the room to investigate the bang. She was extremely annoyed, and we received a serious telling off, as she thought we were trustworthy chemistry students , but she was unable to take the matter further, as we were not supposed to be left unattended. I can only assume that soap in the sink allowed the siliane to build up to an explosive concentration before ignition. There was none of the usual popping sounds prior to the explosion, just one very loud bang. (Thinking about it, the explosion was most likely the result of hydrogen being generated from the unconsumed magnesium powder, the siliane just provided the ignition source.)
  • I love how MMH is super scary to work with in a lab and yet people fill dozens of tons of this stuff into rockets, sometimes with people on top :) also fun fact, TEA is sometimes used as an igniter fluid in rocket engines.