Originally Posted by
EGUNWT
The gas in a CO2 cartridge isn't liquified. It's just compressed. You could take the same volume of any gas and compress it to the same PSI and fit it into the same cylinder. It's counter-intuitive. It's also science, by a guy named Avogadro a long time ago.
Science. It works.
Only if you get it right. The CO2 does liquify when compressed and then occupies a much smaller volume in those little cylinders than it would at that pressure (about 900 psi) if it remained a gas and therefore followed the ideal gas law. Here are some comments from a company that makes the cartridges:
http://www.genuineinnovations.com/learn_about_co2.html