Dinitrogen monoxide
[CAS# 10024-97-2]

Identification

• Classification: API >> Anesthetic agents >> General anesthetics
• Name: Dinitrogen monoxide
• Synonyms: Laughing gas; Factitious air; Hyponitrous acid anhydride
• Molecular Formula: N₂O
• Molecular Weight: 44.01
• CAS Registry Number: 10024-97-2
• EC Number: 233-032-0

Properties

• Solubility: Soluble (73.9 g/L) (25 ºC), Calc.^*
• Density: 1.23 g/cm³ (-89 ºC)^**
• Melting point: -90.8 ºC^**
• Boiling point: -88.41 ºC^***
• Refractive index: 1.380^****

^* Calculated using Advanced Chemistry Development (ACD/Labs) Software V11.02 (©1994-2013 ACD/Labs)

Safety Data

• Hazard Symbols: O
• Risk Codes: R8

Hazard Classification

Hazard	Class	Category Code	Hazard Statement
Oxidising gases	Ox. Gas	1	H270
Gases under pressure (compressed)	Press. Gas (Comp.)		H280
Gases under pressure (refrigerated liquid)	Press. Gas (Ref. Liq.)		H281
Gases under pressure (liquid)	Press. Gas (Liq.)		H280
Specific target organ toxicity - single exposure	STOT SE	3	H336
Acute toxicity	Acute Tox.	2	H330

• Transport Information: UN 1070 2.2