3 ms·
We do use it where possible. But at higher temperature like for welding, Nitrogen is no longer inert. And liquid nitrogen is too warm for the things you need li
by corty 6y ago
We do use it where possible. But at higher temperature like for welding, Nitrogen is no longer inert. And liquid nitrogen is too warm for the things you need liquid Helium for. Other alternatives are usually even more expensive or dangerous. You would never use liquid O₂ for cooling if you can avoid it...
- corty 6y agoAh, maybe you meant CO₂, it is similar to N₂ in all those aspects. Just even more reactive, warmer in liquid form than even nitrogen. And in addition never liquid at atmospheric pressure and actively poisonous to humans. So usually worse than N₂. There are just a few applications where its used that I know of: Dry ice, environment-friendly coolant, sparkling drinks and killing lifestock.
- BenjiWiebe 6y agoActually, I'm pretty sure exabrial was referring to argon.
- exabrial 6y agoYes I was referring to argon. Rereading my comment made more sense in my head.