Barium nitrite

Barium nitrite is a chemical compound, the nitrous acid salt of barium. It has the chemical formula Ba(NO₂)₂. It is a water-soluble yellow powder. It is used to prepare other metal nitrites, such as lithium nitrite.

Barium nitrite

Names
Preferred IUPAC name Barium nitrite
Identifiers
CAS Number	13465-94-6
3D model (JSmol)	Interactive image
ChemSpider	145952
ECHA InfoCard	100.033.358
EC Number	236-709-9
PubChem CID	166820
UNII	5N5G361962
CompTox Dashboard (EPA)	DTXSID30890698
InChI InChI=1S/Ba.2HNO2/c;2*2-1-3/h;2*(H,2,3)/q+2;;/p-2 Key: GJTDJAPHKDIQIQ-UHFFFAOYSA-L
SMILES N(=O)[O-].N(=O)[O-].[Ba+2]
Properties
Chemical formula	Ba(NO2)2
Molar mass	229.34 g/mol
Density	1.459
Melting point	277 °C (531 °F; 550 K)
Hazards
Occupational safety and health (OHS/OSH):
Main hazards	Toxic
Related compounds
Related compounds	Sodium nitrite, Potassium nitrite
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Synthesis

Barium nitrite can be made by reacting barium nitrate with lead metal sponge, or by reaction of lead nitrite with barium chloride.^[1]

Safety

Barium nitrite is toxic if ingested or inhaled, as both barium and the nitrite ion are toxic.^{[citation needed]}