Packaging gas

Encyclopedia : P : PA : PAC : Packaging gas

A packaging gas is a gas used for packaging of sensitive materials in modified atmosphere. It is usually inert, or of the nature that protects the packaged goods.

For packaging food, various gases are approved. Their E numbers are in parenthesis:

argon (E938), used for canned products
helium (E939), used for canned products
nitrogen (E941)
oxygen (E948), used eg. for packaging of vegetables
hydrogen (E949)
carbon dioxide (E290, also propellant)

Specific kind of packaging gases are aerosol propellants:

dichlorodifluoromethane (E940), rarely used
nitrous oxide (E942), used for aerosol whipped cream canisters (see here)
butane (E943a)
isobutane (E943b)
propane (E944)

From Wikipedia, the Free Encyclopedia. Original article here. Support Wikipedia by contributing or donating.
All text is available under the terms of the GNU Free Documentation License See Wikipedia Copyrights for details.