The 5 Most Dangerous Chemicals on Earth

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Published 2014-12-13
Can you imagine a substance so deadly that even a millionth of a gram could kill you? They explode when you touch them. They can even disable you with their horrifying smell. Join Hank Green for a new terrifying episode of SciShow that will introduce you to the most dangerous chemicals in the world.
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All Comments (21)
  • @swordsmancs
    Fluorine: “That’s a nice electron you’ve got there, it’d be a shame if somethin were to happen to it”
  • @grugg3108
    Azidoazide Azide explodes when:
    *Touched
    *Not touched
  • This is one of the best, if not THE best, episode of SciShow. The science is fascinating, the banter rolls off naturally, and Hank's presentation is sublime with his trademark snark. A masterpiece of an episode.
  • @Fatman311
    'It has both acute and chronic effects which means that it will both kill you now, and later' is one of the best sentences I think I've ever heard.
  • @efoxe2890
    Fluorine: “your electron, hand it over.”
  • @Teatur_
    A scientist describing a scent as “disagreeable” is the most scientist thing I’ve ever heard
  • @noelb8284
    As a German, I am both proud and terrified of the fact that our scientist made pretty much all of that.
  • @techno-dg8oh
    I want a sequel to this, 5 more dangerous chemicals
  • @DanielVerberne
    Hank’s description of the sensitivity of Azidoazide Azide was amusing and seems like he was having fun with just how extreme the anecdotes are
  • We require a sequel to this, after all this time.

    A similar episode related to chemical compounds would be good too.
  • When I was in high school this was my favorite sci show vid. Now I have a degree in chemistry and can indeed say that “More dangerous than Florine gas” is not a sentence that you get to say almost ever.
  • @bonetonelord
    A guy who worked on ClF3 rocket fuel said in a book that his recommended solution to spills of the chemical was "a good pair of running shoes."
  • @pointlessviewer
    "Disagreeable" is the best smell description I have ever heard
  • Hank, you seem to be rather delightfully happy to present this ghoulish list of extremely dangerous substances. I enjoyed your presentation!
  • @XhanAnimations
    Every now and then I like to come back and rewatch this episode. It has one of the funniest presentations of a really cool subject 💚
  • @Technocolor00
    Azidoazide Azide is very relatable
    Just wants to be left alone, dosnt work well with others, becomes violent when messed with
  • @taproot0619
    It is 2023. I have been coming back to this video time and again for nearly a decade and it's still one of the best videos on the entire internet.

    Also, LOVE to see scishow make an update video or maybe "5 more absolutely redoculous chemicals that can kill you in increasingly interesting ways" Because Hank making videos where he Jovially describes absolutely insanely dangerous chemicals is just the kind of vibes more people need in their lives.
  • I barely passed high school chemistry, but this is fascinating.