5 of the World's Most Dangerous Chemicals

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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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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

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    Popular Comments:

tristan saskosky . 2018-10-23
i dont think concrete burns
i work with it
121 2 . Reply
Khabib Time . 2018-10-21
maybe a good channel but to much talk without examples for newbies
121 2 . Reply
Todd Baxter . 2018-10-21
Dont forget pentaborane and aluminum phosphide. These are stabile enough to be made in reasonable quantities transported and used commercially. Thus are actually more dangerous to the general public than your list of five which are spectacular but esoteric.
121 2 . Reply
Nljie Isme . 2018-10-20
"Too sensitive to even measure how sensitive it is" badass chemical
121 2 . Reply
Hayden West . 2018-10-19
Re: azidoazide azide: "This term is not a real chemical name. The blogger Derek Lowe made up this term as a joke when referring to "1-diazidocarbamoyl-5-azidotetrazole". The joke name azidoazide azide has, however, been used since then, sometimes jokingly in imitation of Lowe, and sometimes apparently without realization of the joke origins of the name."
121 2 . Reply
shashank gupta . 2018-10-19
Heiserberg is happy with this video 😈
121 2 . Reply
Chloroplast . 2018-10-18
if you want a description of what AA is

imagine my dog
121 2 . Reply
Nano Klzd . 2018-10-17
he is so annoying, god.
121 2 . Reply
ArtificialDjDAGX . 2018-10-17
C2N14 is not called Azidoazide Azide.
It was jokingly called that by a dude in his chemistry blog and for some reason it's caught on as the real name by people not knowing this and people jokingly referring to his joke name for it.
121 2 . Reply
TheJasonCombee76 . 2018-10-16
My farts..
121 2 . Reply
Delta Green . 2018-10-15
needs some FOOF
121 2 . Reply
Silver Fox . 2018-10-15
This is my single favourite SciShow video of all!
121 2 . Reply
Jakub Mareda . 2018-10-15
Acetic acid is stronger and more dangerous than sulfuric acid.
121 2 . Reply
Other World Explorers . 2018-10-15
I have both been educated and WELL entertained!!!
This was an AWESOME video!!
Sharing with all my friends... :)
121 2 . Reply
InFamous James . 2018-10-15
LoL.. Kraus Was Awsome,, Live By The Sword, Die Bye The Sword..
121 2 . Reply
spindash64 . 2018-10-13
0:40 for context, the German Rocket Fighter, the Me-163, used hypergolic fuel, which meant that the two substances used to fuel it exploded on contact with each other. And if the oxider leaked into the cockpit, it could immediately kill the pilot, leaving behind nothing but a skeleton.

that last part was not hypothetical, by the way: it happened on at least one occasion

So yeah, the people desperate enough to use THAT looked at this and said, "yeah how about no?"
121 2 . Reply
Jane Lane . 2018-10-13
this idea was bad. the concrete is on fire.
121 2 . Reply
amoskowitz0103 . 2018-10-12
These chemicals can't be nearly as noxious as this kid is obnoxious.
121 2 . Reply
absentmindedprof . 2018-10-12
What are the 5 most dangerous organic chemicals?
121 2 . Reply
VGM_ . 2018-10-12
Why did Germans create so many of there?
121 2 . Reply
Cameron Stover . 2018-10-11
SOOOOOOOO Germany is good at making dangerous sh**
121 2 . Reply
asyoz . 2018-10-11
Hank, I don't think I've ever seen you enjoy a video more than this one - your grinning through it was awesome!!
121 2 . Reply
3DayPriest . 2018-10-11
You can smell something almost instantly from how far? Only as fast as it wind is blowing.
121 2 . Reply
3DayPriest . 2018-10-11
No, N2 is not usually torn apart by something powerful like lightning. Ever hear of nitrogen fixation?
121 2 . Reply
3DayPriest . 2018-10-11
Because Germany IS KNOWN FOR CHEMISTRY. Chem majors are advised to fulfill their language requirement with German. Germans are THE chemists. Scientists study the world. People who are NOT scientists find ways to use these discoveries in nefarious ways.
121 2 . Reply
Memes n Shet . 2018-10-10
It will kill you now and later xD
121 2 . Reply
kevin159875321 . 2018-10-09
I just keep coming back to this masterpiece of comedy and video.
121 2 . Reply
oldtimedrumcorps . 2018-10-09
You just produced the worlds deadliest chemical and the phone rings, surprise surprise, its the Military
121 2 . Reply
Ralph Samson Lal . 2018-10-09
Best Scishow Episode ever!!!
121 2 . Reply
humphrey707 . 2018-10-08
If azidoazide explodes by everything how do you make it for it to be stored in the first place?
121 2 . Reply
richard bidinger . 2018-10-07
I think he had way too much fun with this video.
121 2 . Reply
Katie Kane . 2018-10-07
Love the dry wit of scientists! di- methyl sulfoxide is a cool transport chemical for transdermal medicine delivery. Makes your breath & sweat smell like garlic though!
121 2 . Reply
Red Mars . 2018-10-06
is he John Green's brother??? they look and sound alike
121 2 . Reply
Commander Zoroark . 2018-10-06
Im wheezing at the part about that chemical combo that explodes while doing nothing
121 2 . Reply
Panzerfaust 991 . 2018-10-06
you're super annoying.. stfu already!!
121 2 . Reply
MarbleSwan666 . 2018-10-06
Without watching im calling FOOF.
121 2 . Reply
Chantal Renee Hayles . 2018-10-06
i am C2 N14
121 2 . Reply
Jm Cresencio . 2018-10-05
i think what defines a strong acid and a weak acid is dependent on what type of bonding it has between the acidic proton to the conjugate base AND the polarity of the atoms of the conjugate base, Acetic acid is weak because the proton bonds to oxygen, and we know that oxygen is one of the 2nd most electronegative element in the periodic table, so it will rarely give up the proton AND oxygen is the most electronegative atom in Acetic acid, so the positive charges of carbon and hydrogen gives a more stable compound than the acetate conjugate base, making it a weak acid. On the other hand, Fluoroantimonic Acid, the proton bonds to Antimony, which has an electronegativity value lower than hydrogen (Sb =~2.05, H =~2.15), PLUS it has 7 VERY ELECTRONEGATIVE FLUORINE ATOMS bonded to antimony, making antimony VERY POSITIVE and hydrogen is also POSITIVE, so antimony will really repel the 2 positive hydrogen protons thereby making it a VERY strong acid
121 2 . Reply
Wennie Pascua . 2018-10-05
121 2 . Reply
Christopher Leubner . 2018-10-05
surprised dimethyl mercury didn't make the list...
121 2 . Reply
Ida Bagus Paramarta Premananda primaryschool . 2018-10-03

I found that funny XD
Anyone else find that funny?
121 2 . Reply
Mullcrum the Sage . 2018-10-03
Whadda bout Sugar? Sugar is pretty dangerous...oh wait..it's in almost all of our food :/
121 2 . Reply
REME . 2018-10-03
This video is one of your best. Informative, intelligent, interesting and funny.
121 2 . Reply
Ghostbusters3 . 2018-10-03
HF does everything that superacid does. Even better, it sinks into skin like water into a sponge, which the superacid will not do.
121 2 . Reply
Exolette . 2018-10-02
What if you mix all of them together?
121 2 . Reply
Eddie vargas . 2018-10-01
Not good with chemistry but could the flouroantimonic acid help with making the decay of radioactive waste from nuclear power plants go faster?
121 2 . Reply
Jan Michael Vincent . 2018-10-01
Why are all the crazy chemists german?
121 2 . Reply
Keyston Rice . 2018-09-30
The way he explains these things make me laugh extremely hard 🤣🤣🤣🤣
121 2 . Reply
KyuofCosmic . 2018-09-30
I love rewatching this episode. It’s hilarious and one of my ‘break glass in case of sads’ videos
121 2 . Reply
Dr.RockFace Fanatic . 2018-09-30
So how do they work with AA in the creation process? How do you they know so much of it if they can never observe well. If it just blows up instantly.
121 2 . Reply