Nitrous Oxide

Nitrous oxide, commonly known as laughing gas or nitrous,[1] is a chemical compound, an oxide of nitrogen with the formula N2O. At room temperature, it is a colorless non-flammable gas, with a slight metallic scent and taste. At elevated temperatures, nitrous oxide is a powerful oxidizer similar to molecular oxygen.

Nitrous oxide has significant medical uses, especially in surgery and dentistry, for its anesthetic ,pain reducing and analgesic  effects. Inhalation of nitrous oxide is used frequently to relieve pain associated with childbirth, trauma, oral surgery, and acute coronary syndrome (includes heart attacks). Its use during labour has been shown to be a safe and effective aid for birthing women.[19] Its use for acute coronary syndrome is of unknown benefit.

Other major uses of Nitrous oxide gas are Aerosol propellant the gas is approved for use as a food additive (also known as E942), specifically as an aerosol spray propellant. Its most common uses in this context are in aerosol whipped cream canisters, cooking sprays, and as an inert gas used to displace oxygen in order to inhibit bacterial growth when filling packages of potato chips and other similar snack foods.

It is used in Rocket motor and Auto Engine