Nitrous oxide is a colourless gas. It has two nitrogen atoms and 1 oxygen atom written as N2O. Nitrous oxide is typically used for sedation and pain relief by medical doctors and dentists. It has also been misused by people for recreational reasons.
Another use for nitrous oxide gas is as a fuel booster in cars. Nitrous oxide is not flammable at low temperatures. However, when super heated the oxygen is broken off & helps burn the cars normal fuel and release more energy.
The nitrous oxide for sale here is for cooking purposes. It is utilised as a foaming agent in food & drink, whipping cream, making mousses, infusing flavours into alcohol & lots of other culinary uses.