Nitrous oxide is a colourless gas. It has 2 nitrogen atoms & 1 oxygen atom written as N2O. Nitrous oxide is usually used for sedation and pain relief by medical doctors and dentists. It has also been misused by people for recreational purposes.
Another use for nitrous oxide gas is as a petrol booster in cars. Nitrous oxide is not flammable at low temperatures. However, when super heated the oxygen is broken off and helps burn the cars ordinary fuel and release more energy.
The nitrous oxide sold on this site is for cooking purposes. It can be used as a foaming agent in food & drink, whipping cream, making mousses, infusing flavours into alcohol and many other foodcooking applications.