Nitrous oxide is a colourless gas. It has 2 nitrogen atoms and one oxygen atom written as N2O. Nitrous oxide is commonly used for sedation & pain relief by medical professionals and 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 cooler temperatures. However, when super heated the oxygen is release and helps burn the cars ordinary fuel and release more energy.
The nitrous oxide for sale here is for food and drink purposes. It is used as a foaming agent in food & drink, whipping cream, making mousses, infusing flavours into alcohol and lots of other culinary uses.