Nitrous oxide is a colourless gas. It has two nitrogen atoms & 1 oxygen atom written as N2O. Nitrous oxide is commonly used for anesthesia and pain relief by medical doctors & dentists. It has also been misused by people for recreational purposes.
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 release and helps combust the cars normal petrol and release more energy.
The nitrous oxide sold on this site is for cooking purposes. It is utilised as a foaming agent in food and drink, whipping cream, making mousses, infusing flavours into alcohol and lots of other culinary uses.