wiggywacker wrote:

So I did some searching on internet, and came up with a site that use CO2 in
car racing. They explained that CO2 is not a gas, but a liquid that happens
to 'boil' at a relatively low temperature (about 112°f / 42°c), so therefore
to get max capacity into the CO2 bottle, it should be very cold.

When I was a boy in upstate New York, it was so cold that CO2 froze solid and
sublimed out of the air.

Amazing what facts you can dig up on the internet!