What Happens When You Mix Helium & Sulfur Hexafluoride?

  • Published on Feb 7, 2019
  • Today we're taking Helium and Sulfur Hexafluoride (SF6) and trying out a few different experiments. What happens to your voice when you mix the two? Can you transfer them with your lungs? Let's find out!
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Comments • 2 248

  • FloatedGoblin2
    FloatedGoblin2 4 days ago

    hey will Helium make fire bigger or put it out ?

  • Ewaldt Niehaus
    Ewaldt Niehaus 7 days ago

    Can a SF6 balloon bring down a He balloon??

  • dontlikemath -.-
    dontlikemath -.- 8 days ago

    Literally the easiest way to cause sometimes permanent brain damage

  • Luke Swanson
    Luke Swanson 11 days ago

    It's weird when you inhale helium, it doesn't hurt like holding your breath, but all of the sudden you feel really light headed and sometimes almost pass out.

  • Speed Striker
    Speed Striker 11 days ago

    it equals helium hexaflouride

  • GodSofpranks I suck at pranks lol

    At 10:32 I saw a golden crown

  • Liana Gao
    Liana Gao 18 days ago +1

    *Nate’s lungs went 🤯😱🤗🥳😖🥺😫😤😭😓🥶🥵 during this video.*

  • J Ma
    J Ma 19 days ago

    She's gorgeous

  • Peris Chatza
    Peris Chatza 19 days ago

    Try to lift urself using balloons!!

  • Johnny Burklow
    Johnny Burklow 19 days ago

    Where do you even get sulfur hexafluoride

  • Trent Clark
    Trent Clark 20 days ago

    Fill a balloon with helium and one with Sulferhexafluoride and then tie them together and do a tug-of-war

  • Velasco De Llama25
    Velasco De Llama25 21 day ago +1

    There voices so funny 😂

  • christian dahl jepsen

    Rip king of random💔

  • Ola Okoroh
    Ola Okoroh 21 day ago

    12:02 nate has 3 nostrils

  • John Cooms
    John Cooms 22 days ago

    The only reason why the mixture of sulphur hexafluoride and the helium, sulphur hexafluoride came out first because it is heavier than the helium obviously

  • JT Callison
    JT Callison 22 days ago

    Sulfur hex is heavier than air, carbon dioxide is heavier than air
    Im like... what? But they are both air.... air is a mixture of gases we breathe... so u mean its heavier than oxygen...

  • Russia Communism
    Russia Communism 22 days ago

    TKR can you fill a balloon with helium and hydrogen and burn it

  • Tsetsegmaa Tsend-Ayush
    Tsetsegmaa Tsend-Ayush 23 days ago +1

    can you try inhaling helium and sulfur hexafluoride then talking?

  • PvPMardy
    PvPMardy 24 days ago

    8:44 If only there was one more gram...

    DANGER D 27 days ago

    guess what..... 2019 is about to end

  • Jacob Parkin
    Jacob Parkin 28 days ago

    Make soda with frozen sulfur hexafluoride Instead of dry ice please I have to know lol.

  • Tim Sawyer
    Tim Sawyer Month ago

    How did you two NOT tie a Helium balloon up to a SHF balloon?!?!?!?! How cool would it be to figure out the right ratio to get them to just kind of hover in front of you? Or walk around with a bunch of them, like a clown, but balloons at the top of the string and the bottom. Would have been sweet to see...

  • Triboh
    Triboh Month ago

    Try filling up different sports balls (Basketball, Volleyball, soccerball and football,etc..) with each of these gases

  • Misaka Uchiha
    Misaka Uchiha Month ago +1

    Calli is like a concerned mother but she also wants to see where it ends xD

  • Ms. Kuchisaké
    Ms. Kuchisaké Month ago

    What did the Smurf say when he fell down a well? 2:33

  • GalaCtix Studio
    GalaCtix Studio Month ago +2

    10:31 - 10:32 - set speed to 0.25 and you will see TKOR logo

  • Gabe Vanminsel
    Gabe Vanminsel Month ago +1

    Does it pop louder when it has helium or sulferhexerfloried

  • Marty Gellerman
    Marty Gellerman Month ago


  • JackyBoy Slim
    JackyBoy Slim Month ago

    I finger my own butt hole. Thumbs up if same.

  • Lucky Artist
    Lucky Artist Month ago

    Kylo ren sounds like he always has hexaflouride in his lungs!

  • Edward Drost
    Edward Drost Month ago

    Do you guys have your own hospital wing, with special equipment, for when things go less than planned?

  • makeup tutorials with jolene davis

    Are they dating or like friends or bro and sis I've been really confuesed

  • Meme God
    Meme God Month ago

    *lungs have left the chat*

  • Molly K-j
    Molly K-j Month ago

    How many helium balloons does it take o balance out a sf6 balloon

  • Yusuf Hussain
    Yusuf Hussain Month ago

    Attach a helium balloon to a sulfurhexofloride balloon to see them hang in mid air

  • Ian Lairmore
    Ian Lairmore Month ago

    0:50 you wont float if you blow up a balloon with the helium thats in your lungs xD

  • Samka Heron
    Samka Heron Month ago

    can you see what happens when you put TUNGSTEN HEXAFLUORIDE in WATER

  • Your Cookie
    Your Cookie Month ago +1

    That glove balloon is just beautiful

  • hay,hay's asmr
    hay,hay's asmr Month ago

    So I literally either pass out for like 20 seconds or get really dizzy when I use helium

  • eli wirginis
    eli wirginis Month ago

    How fast can you snuff out lit charcoal with these heavy gasses

  • Rachel Colvin
    Rachel Colvin Month ago

    You sound like a Goa'uld with the Sulfer Hexafluoride/Helium mix.

  • Eddie Lap Lap
    Eddie Lap Lap Month ago

    Sulfur Hexafluoride (SF6) crystallizes when at absolute zero. The firmament is made of it.

  • Jay Choo
    Jay Choo Month ago

    Tie Balloons together until it balances out

  • JonasRogier
    JonasRogier Month ago


  • radko bashev
    radko bashev Month ago

    Carbon Dyoxide is 2x times heavier than air.
    Thats why the Carbon Dyoxide went down slower than the Sulfur Hexafluoride.

  • radko bashev
    radko bashev Month ago

    That purple balloon probably had 40% Helium, 36% Carbon dyoxide and 24% Air.
    That's why it barely floted up.

  • VexyDarling Studios
    VexyDarling Studios 2 months ago

    Im surprised no one noticed the flashing logo at 10:31?

  • Buffbud96
    Buffbud96 2 months ago

    you know... i was wondering why this whole video seemed really familiar... then i looked at the date... Why did youtube recommend this to me 9 months after i already watched it?!?!

  • Zac Coyle
    Zac Coyle 2 months ago

    2:34 you can see Nate's lips changing color because of the lack of oxygen replaced by helium getting to the brain

  • Tactical Ultimatum
    Tactical Ultimatum 2 months ago

    At 6:46 he definitely dropped 😂😂

  • DK Jr
    DK Jr 2 months ago

    My friend did the same thing but with a blunt (holding his breath)

  • Larissa Clark
    Larissa Clark 2 months ago +1

    This would probably be a bad moment to realize you’re allergic to sulphur

  • Ashley Howard
    Ashley Howard 2 months ago

    Pause video at 12:28

  • attention01134
    attention01134 2 months ago

    U didnt mix it. F

  • Mihajlo pro games Vujic 2

    Mix that and speak plsss

  • Daniel Myers
    Daniel Myers 2 months ago


  • Shubham Prasad
    Shubham Prasad 2 months ago

    5:25 did anyone else notice a inflated glove hanging to the celling?!

    • Shubham Prasad
      Shubham Prasad 2 months ago

      I just realized that another person saw this before me!

  • Gravedigger7000
    Gravedigger7000 2 months ago

    My favorite part if this video is when I noticed the glove in the background

  • Zeke Frackman
    Zeke Frackman 2 months ago

    10:17 it was the pressure from the sulfurhexafloride

  • Palex TheOne
    Palex TheOne 2 months ago

    10:32 what the-