Nitrous Oxide Cartridges

Nitrous Oxide (N₂O)  has similar properties to Carbon Dioxide in that N₂O can be compressed to a liquid and will also yield a large amount of expanded gas for a small cartridge/cylinder size. Nitrous Oxide cartridges (N2O disposable gas-filled cylinders) are well-matched to cryogenic (evaporative cooling) and food applications.

For a complete list of Nitrous Oxide filled cylinders 

For the Nitrous Oxide Temperature/Pressure relationship