Nitrous oxide

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A colorless, sweet-tasting gas. Nitrous oxide was formerly used as a mild anesthetic called laughing gas. Currently it is used as a propellant in aerosol cans and in leak detection sprays.

Synonyms and Related Terms

dinitrogen monoxide; laughing gas; hyponitrous acid anhydride; factitious air;


  • Asphyxiant; narcotic in high concentrations.
  • Liquid may cause frostbite.
  • LookChem: SDS

Physical and Chemical Properties

Soluble in ethanol, ether, and oils.

Composition N2O
CAS 10024-97-2
Melting Point -90.81 C
Molecular Weight mol. wt. = 44.0
Boiling Point -88.46 C

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