5 of the World's Most Dangerous Chemicals

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.

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Views: 4145137
Added: 1034 years
Runtime: 10:45
Comments: 6744

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Author y2kplus9 ( ago)
Chemistry is fascinating... and absolutely terrifying. O.o;;;

Author Dyna-Mitey ( ago)

Author 5SORC ( ago)
4:36 How to trigger a Feminist.

Author pleappleappleap ( ago)
Did you source quite a lot of this information from Derek Lowe's blog?

Author LazyLife IFreak ( ago)
I want a T-shirt that says "ClF3 setting concrete on fire since 1940"

Author GTdba ( ago)
"It can Explode with the subtlest action,and sometimes even by itself while doing nothing!"
Well, sounds like my average week of period!

Author Some Dude ( ago)
1:28 Looks like Cave Johnson can finally make those Combustible Lemons.

Author Breezy Remy ( ago)
to much smart words, it's hurting my brain

Author Amir Karbelkar ( ago)
Some crazy shit is definitely gonna make this in their garage

Author Beanz Gaming ( ago)
4:50... best moment in sci show history

Author Kacper Pawlikowski ( ago)
Reason why women get mad: 4:49

Author Matthew BPbuds ( ago)
"The concrete..."


Author Zach Johnson ( ago)
Someone tell Germany to stop making dangerous chemicals they have most on this list.

Author PetrosRZ ( ago)
Isn't Freiburg in Switzerland?

Author Demonhog Plays ( ago)
Hans get ze flammenwerfer N

Author Freedumb ( ago)
The Most toxic chemical, weak. The most toxic thing in the world is a russian csgo player.

Author Roby Ramos ( ago)
You say a fluorine fire burns. How about Wildfire?

Author Selmostick Silverstone ( ago)
i am from Freiburg ^^

Author Juan Rosario ( ago)
What the SHIT germany

Author Guido Tanzini ( ago)
so sad azido azide azide still isn't as reactive as paper mario, just imagining paper mario crashing causes paper mario to crash.

Author Xboxplayer68 ( ago)
"It'll take you down with cancer just to spite you" my favorite part of the video

Author Redwan Arosh ( ago)
I wonder what would happen if you mixed all of them...

Author DeadlyVenomKing ( ago)
nothing worse than the stench of your bad breath

Author Robert Weekes ( ago)
Thio-acetone sounds like an effective and hilarious crime fighting substance!

Author tijames ( ago)
Damn Science, you scary!

Author Fitzgerald ( ago)
This is my favorite's *hysterical* and I...I just love it so much. It makes me laugh so hard. <3

Author Derpy Squid ( ago)
4,054,666th subscriber c:

Author VEETS5Productions ( ago)
This channel is for n3rds

Author stormeagle81x ( ago)
how about dimethylmercury?

Author Nich Citarella ( ago)
This made me lol so hard it hurt

Author Wanda Chaney ( ago)
Oh, to be a German scientist! Yikes!

Author Armygamr117 ( ago)
4:30 to 5:00 minutes was my favorite

Author majdo007 ( ago)
Thioacetone is a thioketone not a thiol.

Author John Fraser ( ago)
Make a teflon fume hood?

Author Rikio Rikio ( ago)
Where's Kablammo??

Author blowyabrainsoutcauseofsatan MusicToMyEars666 ( ago)
tap water tastes different now to what it did 10 years ago... hmm..

Author Daniel Howard ( ago)
the AA chemical seems really crazy. imagine having a container of this in your house, you'd be screaming in astonishment that your house was still in one piece.

Author Geometry Dash Sniper /// GDSniperYT ( ago)

Author Anonymous Freak ( ago)
So... Thioacetone is what's in the Bog of Eternal Stench?

Author David Baker ( ago)
What a great educator

Author Ex Nihilo ( ago)
I wouldn't mind getting my hands on some thioacetone to play with. Oh the deviant things that could be done with something like that! I wonder if it's one of those obscure drugs that haven't been made illegal to yet...

Author Ronald Vaughan ( ago)

Author beau denny ( ago)
"Nitrogen just wants to be left alone."

Author undertaker666dead ( ago)
The most toxic chemical in the world and should be avoided at all cost is... Vegetables

Author undertaker666dead ( ago)
5 of the World's Most Dangerous Chemicals.
Number 1: Chuck Norris

Author H(CHB11Cl11) ( ago)
I do not approve.

Author afrain000 ( ago)
"To clean it's equipment within an inch of its life" XD.....

Author Leyton Vergeire ( ago)
This is the best episode of SciShow yet. Love it!

Author Nightmare Dreemurr ( ago)
"One eye witnesses describe the event simply as:
The concrete... was on fire."


Author MyImmaculateQueen ( ago)
Your video is weak. Does us all a favour and talk about something relevant.
Here are 2 poisons we should all avoid
1. MERCURY - it's a neurotoxic poison contained in many vaccines.
2. FLUORDIE - it's in our water supply and causes more cancer than any other chemical. Dr Dean Burke PHD and 34 years at the National Cancer Institute.

Author Pink Tigress ( ago)
Jeez, WHUT is it with germans and making deadly stuff?!?!?!?!?!?!

Author I have been captured and claimed by stingy ( ago)
*t h e c o n c r e t e w a s o n f I r e*

Author Fabian Suckfüll ( ago)
Came here looking for chlorine trifluoride. Was not dissappointed.

Author Dwan Pol ( ago)
This is my favorite Scishow.

Author Spacewarp Photography ( ago)
Do not taunt Happy Azidoazide Azide Ball.

Author Salty ( ago)
Alien blood

Author bbutc ( ago)
Thumbs up if you survived this video.

Author paul geldreich ( ago)
I can see from the quality of the writing in these comments that you are very intelligent young people.
Here's something you may find interesting: Nuclear reactors tend to blow up because the fuel rods cans are coated in Zirconium, which when heated to a certain point starts catalytically producing Hydrogen in large amounts from the reactor's cooling water... Do you see the connection and why it's so important you do?

Author Moustache Suave ( ago)
I want this guy to be my science teacher

Author Mike Kwarciany ( ago)
"the concrete - was on fire!" haha

Author Nathan Jacobs ( ago)
acute and chronic effects...will kill you now AND later hahaha

Author ffyhmlr ( ago)
you remember me to the log in mass effect! Love it! omg love it!!

Author KittyVolcano ( ago)
Azidoazide Azide is a nice name. You can't admire it though, it'll just explode.

That's just a heap of Fluoroantimonic Acid
YouTube even says it's spelled wrong, thats how unpopular it is.

Author Grammar Not I Has ( ago)
thioacetone + timed release mechanisms= surefire way to demoralize isis. unfortunately this is chemical warfare so it's banned, but i can't help but giggle at the thought of stinkbombing terrorists into submission

Author Nightmare Dreemurr ( ago)
AA can explode without being touched?


Author Riley Cabanero ( ago)
Is it just me or is it like he's Bill Nye 2.0?

Author AlecS st. ( ago)
I am proud of germany right now

Author ChristianLP 03 ( ago)
why always we germans experiment with dangerous as f*ck chemicals? 😂

Author Xx Blaineworld xX ( ago)

Author Tomkar 01 ( ago)
How to I get some of this stuff?

Author wholeNwon ( ago)
That was great fun!

Author Vio ( ago)
"C2N14" :D

Author iosef 333 ( ago)
Wait... If nitric acid nitrates and chloric acid chlorates, is there a HNF3? Or even HNF4? lol Lets "fluorate" (?) erythritol! :v

Author Colinsz 8 ( ago)
U sad hydrofulic acid

Author TurnaboutHalifax ( ago)
This is the most fun a Chemistry video has every been

I want to meet the people who chose to call a smell *disagreeable*

Author Taran Kuntz ( ago)
Sci show is definitely one of my favorite youtube channels. I love learning from you guys! keep up the great work

Author LooshBuddy ( ago)
Learning organic chemistry for my biochem major made this episode even more amusing than when I watched it years ago

Author Stephen Dahlem ( ago)
compare thimerisol with dimethyl cadmium

Author Stephen Dahlem ( ago)
perchlorates, dried out

Author Camaika Amelung ( ago)
I totally LOVE the way this video is done <3

Author geometydash R3kt ( ago)


Author Ochreification ( ago)

Author Wanla Wanla ( ago)
i think he said Like FUCK YOU

Author Jane Murphy ( ago)
Put Thioacetone in water guns, then proceed to have the move fucked up "water" fight to have ever been done.

Author ServantToTruth ( ago)
It's pretty hard to imagine smelling a drop of something from a half of mile away. I guess that's why it made the list lol

Author Daniel ( ago)
I guess my ex-girlfriend was an Azidoazide Azide

Author Intellectual Cat ( ago)
I died watching 4:38-451 lol

Author Def Leppard Rocks ( ago)
It will kill you now AND later.

Author Mr Wellington Von Duke III ( ago)
personify more molecules. make it like a daytime soap opera.

Author Russell Flowers ( ago)
Germany keeps popping up. Just saying.

Author Lemon Lord ( ago)
Look at this guy, look at this guy he's amazing-ly funny. No homo

Author Mork 666 ( ago)
awsome video,you just won a subscriber

Author Nalisan .S ( ago)
I really a BIO-Blasting bomb just having the below ingredients :
Azido-Azide Azide - 5000 l
Di-Methy Cadium - 4000 l
Fluro-Monic Acid - 3000 l

"//Caution : Don't ever imagine to see them,because dreaming will trigger it to burst// "

Author Rex Plays ( ago)
if you type in "The concrete was on fire" into the search you get this video as the second result

Author Seth Gibbens ( ago)
anyone know what he does for a job

Author David Baker ( ago)
Brilliant! I've lost count of how many times I've watched this!

Author 雨琛涂 ( ago)
China recently invented pure pentazenium anion cyclo-N5ˉ , it's almost 50 times more powerful than c2n14 (per gram).

Author Enz0ne ( ago)
there is one toxin that instantly kills any human upon touch

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