5 of the World's Most Dangerous Chemicals

  • Added:  2 years ago
  • They explode when you touch them. Even a millionth of a gram can kill you. They can even disable you with their horrifying smell. SciShow introduces you to give of the most dangerous chemicals in the world.

    Hosted by: Hank Green
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  • Video CategoriesEducation
  • Runtime: 10:45
  • Tags for this video:  chemistry  chemicals  most dangerous  compounds  poisons  toxins  nazis  chlorine trifluoride  substance N  Azidoazide Azide  oxidizers  fluorinating agents  Dimethylcadmium  Thioacetone  Fluoroantimonic acid  hank green  science  sci show  Health  smelly  toxic  

Comments: 7 023

  • Quentin Tubb
    Quentin Tubb 1 day ago

    that explosive that explodes cos you insulted its mother a mile away... its almost as bad as that one you make using iodine

  • Jason Lee
    Jason Lee 1 day ago

    so flouroantimonic acid makes sulfuric acid look like water by comparison damn thats awesome

  • Primus Ghaul
    Primus Ghaul 2 days ago

    Wearing a vanguard t shirt under that hoodie

  • iliden strmrege
    iliden strmrege 4 days ago

    If we use chlorine trifluoride as jet fuel it can melt steel beams

  • Shut Up, Sprinkles!

    Why are lesser-known toxic paints like cadmiums and cobalts toxic?

    Or, how are chemical compounds transformed to be used as pigments in paint?

    Or...why are fluorescent colors not lightfast?

    Honestly I just want to see an episode about paint and pigments—the chemistry is absolutely fascinating.

  • Fajar Yogyanto
    Fajar Yogyanto 6 days ago

    Dont forget, baby poop 😷😷

  • Space Doggo
    Space Doggo 7 days ago

    Fuck chemicals man, oh wait everything is made up of fucking chemicals

  • Lenny Gaming
    Lenny Gaming 7 days ago

    we germans discover alot of stuff xDDDD

  • maggie tamblin
    maggie tamblin 7 days ago

    It sounds as if he is actually a little excited about these substances! But then I would agree if he was. SO AWESOME!

  • John Larrabee
    John Larrabee 7 days ago

    awful lot of German discoveries...

  • Cu Thon
    Cu Thon 8 days ago


  • The Wolf Is Trying
    The Wolf Is Trying 9 days ago

    two mins ago :4252777 subs
    Now: 4252809 subs

  • dodobobby
    dodobobby 9 days ago

    why is there dangerous chemicals around my anus

  • FireFury
    FireFury 9 days ago


  • Nomad2001
    Nomad2001 9 days ago

    Damn we should just spray this tioacetone stuff over isis, It would be more effective than donald trump's 25 player killstreak a few months ago

  • GalacticKnight
    GalacticKnight 10 days ago

    Came for the science, stayed for the delivery. This host MADE this video.

  • Tallest Skil
    Tallest Skil 10 days ago

    Nice Godwin’s Law abuse, kiddo. If you knew a damn thing about history and propaganda, you would have written a completely different script.

  • Joshua Leyko
    Joshua Leyko 12 days ago

    Chemistry sounds neat.

  • Huey Freeman
    Huey Freeman 12 days ago

    I boiled bleach once to get dried macaroni out of a pot. I woke up on the floor after inhaling the steam and I was sore all over.

  • Celsius
    Celsius 14 days ago

    Even synthesizing azidoazide azide makes it explode, I imagine.

  • brett fluhr
    brett fluhr 14 days ago

    how much money did that damn watch company spend on its ad department? its the only ad I see anymore.

  • Samantha Pierce
    Samantha Pierce 15 days ago

    I'm not even done with this video and I love everything about it!

  • Noah Pierce
    Noah Pierce 16 days ago

    If you electrocute an acid will it make hydrogen?

  • christian Robertson
    christian Robertson 16 days ago

    thioacetone sounds like the perfect way a to make nuke equivalent of a stink bomb and a prank across the world

  • Matthew Dyall
    Matthew Dyall 16 days ago

    so AA is basically the chemical equivalent of a feminist

  • Avarickan
    Avarickan 16 days ago

    "You can't put it under a fume hood, it'll eat the fume hood."

    I am shocked he was able to deliver that line so flatly.

  • Xe cydez
    Xe cydez 16 days ago

    Loves Clearly the most dangerous.

  • Peter2kx
    Peter2kx 16 days ago

    Long story short i was in a chemistry class and we were writing down some covalent molecules and all the other students wrote really simple every day molecules and I wrote chlorine trifluoride because ironically last night I watched this video and this was the conversation my teacher had.

    Teacher: "Oh wow chlorine trifluoride, that's a pretty dangerous chemical"

    Me: "oh I know. I'm aware."

    Teacher: "you know? How?"

    Me: "I have my ways."

  • Lazy Bear
    Lazy Bear 16 days ago

    Somebody really missed a chance to call azosoizide azide explodium amirite?

  • 3majsie maciek
    3majsie maciek 16 days ago


  • KororaPenguin
    KororaPenguin 17 days ago

    7:58 -- Was that a "vial" of the thioacetone or a "vile"?

  • DarkKrusty
    DarkKrusty 17 days ago

    Thank god my chemistry teacher never got his hands on any of this stuff, hell would not surprise me if he had a hand in some of the stuff, he was "mad" he even had that Maniacal glint in his eye...was the best teach I ever had.

  • Psychosis
    Psychosis 17 days ago

    why do you talk like that

  • John Doe
    John Doe 18 days ago

    Guess what? ClF3 will burn through fucking Teflon too! Also Molybdenum, Tungsten, Titanium, Iridium, Osmium, Silver and other what we thought of as anti-corrosive materials.

  • Kristy Franco
    Kristy Franco 18 days ago

    what the heck germans!?!?!?!?

  • Kristy Franco
    Kristy Franco 18 days ago

    hank will u please do another collab with good mythical morning (a.k.a rhett and link) PLEEEEEEEAASSSEEEEEE?!?!?!?!?!?!?!?!?!?!

  • Logan Corbin
    Logan Corbin 18 days ago

    Azidoazide Azide: And you thought Nitrogen Triiodide was bad ;)

  • greenteasenpai
    greenteasenpai 18 days ago

    this was so exciting!! I learnt a lot, even as a chemistry student. C2N14?!! FOURTEEN???? Absolutely mental. Like actually INSANE. how tf did they conjure that up and WHY. do I want to know

  • greenteasenpai
    greenteasenpai 18 days ago

    this was so exciting!! I learnt a lot, even as a chemistry student. C2N14?!! FOURTEEN???? Absolutely mental. Like actually INSANE. how tf did they conjure that up and WHY. do I want to know

  • RandomAccessMisery
    RandomAccessMisery 18 days ago

    You forgot about Dioxygen Difluoride, more commonly known as FOOF due to its... _interesting_... properties, and the absolute madman who decided to react it with half of the chemicals in this list (_and more. _*_what?_*), A.G. Streng.

  • Grendel
    Grendel 20 days ago

    Not to try starting any YouTube channel wars, but you are much more amiable than Simon Whistler... plus I don't want an ear transplant after listening.

    ... also cool segment!

  • Bangbang Liu
    Bangbang Liu 20 days ago


  • Brody Flynn
    Brody Flynn 21 day ago

    "They had it in a shock-proof explosive case in a dark, climate-controlled room, and it blew up." Why would anyone try to use this stuff?!

  • Parker Fulmer
    Parker Fulmer 21 day ago

    Ima get some of that thioacidtone go to Times Square and break the whole vial and watch as everyone bows down to me puking their guts up

  • Backup Tripod
    Backup Tripod 21 day ago

    "the concrete was on FIRE"

  • Jude Breheny
    Jude Breheny 21 day ago

    one of the best intros ever xD

  • TheNovaBosna
    TheNovaBosna 22 days ago

    The Picture you used for Freiburg is not Freiburg in Germany, its the city of Freiburg in Switzerland.

    Great Show anyway.

    DAERREN 22 days ago

    8:08 Well, you got the Swiss Freiburg/Fribourg right there on the picture. Not the German one. Ouch.

  • Jaggedbird
    Jaggedbird 23 days ago

    3:20 - 4:00 basically how ITER works...except AA is far more dangerous to handle

  • ORIONS Bane
    ORIONS Bane 23 days ago

    I might need the smelly one..... and dry ice..... water and a coke bottle.... put it in a dry ice bomb..... what would happen?

  • plant man
    plant man 23 days ago

    6:30 that i made all of the ladies in the first two rows pregnant.

    (please say someone will get this)

  • Dr Dank
    Dr Dank 24 days ago

    the one thing vs aliens

  • Evan Gaudet
    Evan Gaudet 24 days ago

    How did I even get here?

  • Wayne Scott
    Wayne Scott 24 days ago

    Plague Doctors Dream

  • LAWLZY560
    LAWLZY560 25 days ago

    I want to smell that second to last one

  • Tommy C
    Tommy C 25 days ago

    omg. this guy has me in stitches.

  • Jake Dunham
    Jake Dunham 25 days ago

    top five just nopes

  • rick rose
    rick rose 26 days ago

    It was thioacetone that was in Jerry Seinfeld's car, after he left it with the valet!

  • David Rijinashvili
    David Rijinashvili 27 days ago

    actually strongest acid is fluro substituted carborane acid

  • TheLuthyen
    TheLuthyen 27 days ago

    "Is not a sentence you get to say very often" - Florine fires

  • Kevin Stephenson
    Kevin Stephenson 27 days ago

    What no base seriously

  • Luke Havard
    Luke Havard 27 days ago

    Damn Germans

  • Eden DuPuy
    Eden DuPuy 27 days ago

    7:19 "That's no ordinary rabbit! That's the most foul, cruel, and bad-tempered rodent you ever set eyes on!"

  • mathias frolich
    mathias frolich 27 days ago

    What the fuck are with all these germans?

  • ironmatic 1
    ironmatic 1 27 days ago

    Damn, it's so powerful that it can kill you twice! "It will kill you now, and later."

  • dindu nuffin
    dindu nuffin 27 days ago

    somebody please help me find this video I once saw of a chemical reaction between 2 or 3 household thingy's in a bottle. It wasn't mentos and coke or anything with baking soda , and it wasn't a good ol works bomb. It was like the guy added the second or 3rd thing and the guy stood back and there was a firey violent reaction. Dammit I forget.

  • Alexonator
    Alexonator 27 days ago

    Bs acids give off ions not protons, protons are given off during nuclear reactions

  • Sweyn78
    Sweyn78 28 days ago

    Azidoazide Azide and Dimethylcadmium don't even have [English-language] Wikipedia articles. They're in the "List of extremely hazardous substances", but they have no articles. They're *that* crazy.

  • Sweyn78
    Sweyn78 28 days ago

    What would happen to a human, without a sense of smell, upon their interaction with thioacetone?

  • TottallyNotAUnusedName 123

    So fluorine is pretty much a Fluoridzer

  • Zelculo The Squid
    Zelculo The Squid 28 days ago

    I'm surprised botulinum toxin and FOOF didn't warrant a mention here. What gives? Either way, an excellent and enlightening video.

  • the migrant
    the migrant 28 days ago


  • Lift Pizzas
    Lift Pizzas 1 month ago

    Now I know what Happy Fun Ball is made of.

  • Oliver Lupgaro
    Oliver Lupgaro 1 month ago

    I love Sci show. Please keep it up. Like if you marched for science this earth day. #Globalwarmingreal

  • Mike McKeen
    Mike McKeen 1 month ago

    Moral of the story: Stay away from German chem labs. You'll likely die.

  • seha somak
    seha somak 1 month ago

    Germans ...

  • Clem Kadiddlehopper
    Clem Kadiddlehopper 1 month ago

    You're a great host, cracking up and learning.

  • Robert Snider
    Robert Snider 1 month ago

    I love your show. it's amazing

  • Eric Stockham
    Eric Stockham 1 month ago

    gathering some ideas for some senior pranks here...

  • Jonas Grandt
    Jonas Grandt 1 month ago

    dimethylcadmium, it smells "disagreeable"

  • Marvin S.
    Marvin S. 1 month ago

    i am from Freiburg and that picture was definitely not Freiburg but cool video though

  • Galactipod
    Galactipod 1 month ago

    No it's SCP-106
    (Get the reference? Anyone? No?)

  • IxI Oryx IxI
    IxI Oryx IxI 1 month ago

    wait so will fluomasdmswandmsadd acid burn through like diamond?

  • heasoundsystems
    heasoundsystems 1 month ago

    this guy is the best host on scishow. funny as hell

  • RapiDSpacE13
    RapiDSpacE13 1 month ago

    At least you can look at Fluoroantimonic acid unlike Azidoazide Azide which just goes kaboom for no reason.

  • Will Bernhardt
    Will Bernhardt 1 month ago

    Dude your voice is fucking awesome. Idk what it is about it, maybe just how you say some things but it's so awesome to listen to. Also your talking about science so ya that's a plus.

  • ThirtyVirus
    ThirtyVirus 1 month ago

    This is probably my favorite SciShow video

  • Crystal Holcombe
    Crystal Holcombe 1 month ago

    by dangerous I think you mean volitale

  • s0ulfire
    s0ulfire 1 month ago

    That's cool, but do you know about Mercury Fluoride 😎

  • Blueberry101
    Blueberry101 1 month ago

    But something IS more explosive then azidoazide azide. My girlfriend

  • Finnean
    Finnean 1 month ago

    You remind me of my priest. Is your name Brian?

  • Christy T
    Christy T 1 month ago

    I'm renaming this video, "Five Reasons We Don't Need Nukes."

  • Christy T
    Christy T 1 month ago

    So, Trump could be described as Azidoazide azidic.

  • Sky Koudo SOA
    Sky Koudo SOA 1 month ago

    AA is officially my favorite chemical. I relate so much

  • 6ll80 k
    6ll80 k 1 month ago

    you talk way too fast holy shit half the people watching are stoned

  • OW_it_broke
    OW_it_broke 1 month ago

    Germany needs to calm the fuck down

  • claudio sotelo
    claudio sotelo 1 month ago

    so you are telling me my girlfriend is azidoazide?

  • Brandon Diller
    Brandon Diller 1 month ago

    Azidoazide azides thoughts "ALLAHU AKBAR"

  • Destin ToWin
    Destin ToWin 1 month ago

    Is it just me or is this boy wearing a vanguard shirt from destiny

  • Chunsun Lee
    Chunsun Lee 1 month ago

    me to Funbox

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