eli5 why cant you keep liquid nitrogen in a high pressure tank? even though it wants to turn to gas, at a certain pressure it just has to stay in liquid state, when you open the tank again it would just become cold again right?

Question

eli5 why cant you keep liquid nitrogen in a high pressure tank? even though it wants to turn to gas, at a certain pressure it just has to stay in liquid state, when you open the tank again it would just become cold again right?

In: Chemistry

Answer 1

Liquid nitrogen at room temperature would exert a pressure of ~43000 psi.

For comparison to other substances commonly held as a liquid under pressure; liquid CO2 (e.g. for soft drinks) exerts ~900 psi and propane (e.g. fuel) exerts ~120 psi.