Ammonium nitrite

Ammonium nitrite
Names
	IUPAC name Ammonium nitrite
Identifiers
CAS Number	13446-48-5 ;
3D model (JSmol)	Interactive image;
ChemSpider	24223 ;
ECHA InfoCard	100.033.257
EC Number	236-598-7;
PubChem CID	26004;
UNII	71ZQG69956;
CompTox Dashboard (EPA)	DTXSID7065461 ;
	InChI InChI=1S/HNO2.H3N/c2-1-3;/h(H,2,3);1H3 Key: CAMXVZOXBADHNJ-UHFFFAOYSA-N ; InChI=1/HNO2.H3N/c2-1-3;/h(H,2,3);1H3 Key: CAMXVZOXBADHNJ-UHFFFAOYAU;
	SMILES [O-]N=O.[NH4+];
Properties
Chemical formula	[NH4]NO2
Molar mass	64.044 g·mol−1
Appearance	colorless or pale yellow crystals
Density	1.69 g/cm3
Melting point	Decomposes
Solubility in water	118.3 g / 100mL
Explosive data
Shock sensitivity	Low
Friction sensitivity	Low
Detonation velocity	>1000 m/s
Hazards
	Occupational safety and health (OHS/OSH):
Main hazards	Explosive
	GHS labelling:
Pictograms
Signal word	Danger
NFPA 704 (fire diamond)	2 0 3
Flash point	Non-flammable
Autoignition; temperature	Non-flammable
Related compounds
Other anions	Ammonium nitrate
Other cations	Sodium nitrite
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Ammonium nitrite is a chemical compound with the chemical formula [NH₄]NO₂. It is the ammonium salt of nitrous acid. It is composed of ammonium cations [NH₄]⁺ and nitrite anions NO−2. It is not used in pure isolated form since it is highly unstable and decomposes into water and nitrogen, even at room temperature.