Chemistry is weird

Comments

• entwine413@lemm.ee ⁨2⁩ ⁨days⁩ ago

  That’s one thing that annoys me about lithium batteries. Every time there’s an EV fire, people pop out of the woodwork to shit on the FD for using water to put it out.

  Just because the name has lithium in it doesn’t mean it’s elemental lithium.

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  • corvi@lemm.ee ⁨2⁩ ⁨days⁩ ago

    It’s a situation of just enough knowledge, I think. It’s true that water won’t put out an EV battery fire, but it will cool it down and prevent the fire from spreading.

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    • entwine413@lemm.ee ⁨2⁩ ⁨days⁩ ago

      Well, it will put out the fire, but it does it by cooling the battery down so the reaction stops (like you said)

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    • Karyoplasma@discuss.tchncs.de ⁨2⁩ ⁨days⁩ ago

      I guess it depends on what burns. Water is conductive, so you might not want to use it to put out an electrical fire because of the risk of electrocution.

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  • Geodad@lemmy.world ⁨2⁩ ⁨days⁩ ago

    On one side of the battery, it is elemental Lithium.

    It exchanges electrons across a membrane with another substantial.

    Using water on it is bad because the reaction between Lithium and water evolves Hydrogen gas, which ignites in the fire.

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    • entwine413@lemm.ee ⁨2⁩ ⁨days⁩ ago

      You’re wrong.

      Lithium batteries contain little to no elemental lithium. They normally contain lithium cobalt oxide, lithium iron phosphate, or lithium nickel manganese cobalt oxide as the anode, and a lithium salt as the electrolyte.

      Water is about the only way to put one out because it’s an exothermic reaction, and two out of the three are self-oxidizing.

      The biggest danger of a lithium battery getting wet is that it shorts, which can lead to a fire because it goes into thermal runaway. But this can happen if you have one in your pocket with spare change.

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  • CaptainBlagbird@lemmy.world ⁨2⁩ ⁨days⁩ ago

    What does EV and FD stand for?

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    • ghostlychonk@lemm.ee ⁨2⁩ ⁨days⁩ ago

      Electric vehicle and fire department.

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• jawa22@lemmy.blahaj.zone ⁨2⁩ ⁨days⁩ ago

  I was going to make a sodium joke, but Na.

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  • tigerjerusalem@lemmy.world ⁨1⁩ ⁨day⁩ ago

    I could Barium hold my laughter at this.

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• Reddfugee42@lemmy.world ⁨2⁩ ⁨days⁩ ago

  This is how the Karens and Mommy Blogs sound when they complain about “Mercury in vaccines” but it’s just one mercury atom in a molecule that no longer behaves like elemental mercury

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• Saleh@feddit.org ⁨2⁩ ⁨days⁩ ago

  It is the other way round though isn’t it?

  Sodium Chloride is just chilling as a rock or in suspension and then humans put a lot of energy into it, so it is forced to separate. Imagine you and your spouse being torn apart with a lot of violence.

  Of course you get traumatized and act out until you get reunited and have some time to become chill again.

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  • chortle_tortle@mander.xyz ⁨1⁩ ⁨day⁩ ago

    Finally someone that respects that marriage is about the bond between an alkali and a halogen, and should not be separated.

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    • ulterno@programming.dev ⁨1⁩ ⁨day⁩ ago

      Ionic bonded compounds such as NaCl, when in water, interact with other ions around them.
      Even other Na^+^ and Cl^-^ ions…

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• eatsumbum@lemmy.world ⁨1⁩ ⁨day⁩ ago

  Fun fact; cats can drink straight seawater. Mad good kidneys or something, so the soup is going to get far too salty for a human before it gets too salty for a cat.

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• Kyrgizion@lemmy.world ⁨2⁩ ⁨days⁩ ago

  Even just H and O on their own can be quite scary. Throw them together and BAM, ubiquitous lifegiving liquid.

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  • AwesomeLowlander@sh.itjust.works ⁨2⁩ ⁨days⁩ ago

    Idk, I quite like O on its own. Pretty addictive stuff

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  • ColdWater@lemmy.ca ⁨1⁩ ⁨day⁩ ago

    You guy drink H2O?, in my household we drink D2O.

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    • dankm@lemmy.ca ⁨1⁩ ⁨day⁩ ago

      That sounds expensive.

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  • SkyeStarfall@lemmy.blahaj.zone ⁨2⁩ ⁨days⁩ ago

    I know you wrote H and O, and not H2 and O2, but I’m going to assume the gas forms because those two substances pretty much cannot exist in their pure forms

    And for those, O2 is necessary for our life, and H2 is non-toxic, it’s just very flammable. So I don’t know if the comparison fully works

    Of course, you’re right if you mean pure H and pure O, but, again, they will immediately combine to form a new substance

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    • prole@lemmy.blahaj.zone ⁨1⁩ ⁨day⁩ ago

      H3… We drink heavy water in this house!

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• logicbomb@lemmy.world ⁨2⁩ ⁨days⁩ ago

  Salt is scarier than the elements sodium or chlorine because, according to Wikipedia, “Salt is essential for life in general.” Without salt, there wouldn’t be humans creating things like chlorine gas. Life is scary.

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• Hupf@feddit.org ⁨1⁩ ⁨day⁩ ago

  True—salt is the worst.

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