Nitrous oxide is a colourless gas. It has 2 nitrogen atoms and one oxygen atom denoted as N2O. Nitrous oxide is usually used for anesthesia and pain relief by medical doctors & dentists. It has also been misused by people for recreational reasons.
Another use for nitrous oxide gas is as a petrol booster in cars. Nitrous oxide is not flammable at cooler temperatures. However, when super heated the oxygen is broken off and helps combust the cars normal petrol and release more power.
The nitrous oxide sold on this site is for cooking uses. It is utilised as a foaming agent in food & drink, whipping cream, making mousses, infusing flavours into alcohol and lots of other foodcooking uses.