Video encyclopedia

Nitrous oxide


Nitrous oxide, commonly known as laughing gas or nitrous, is a chemical compound, an oxide of nitrogen with the formula N2O. At room temperature, it is a colorless non-flammable gas, with a slight metallic scent and taste. At elevated temperatures, nitrous oxide is a powerful oxidizer similar to molecular oxygen. It is insoluble in water at all temperatures.


  • Uses 

  • Safety 

  • Mechanism of action 

  • Properties and reactions 

  • History 

  • Production 

  • Legality