Chemistry:Barium nitrite

Barium nitrite

Names
Preferred IUPAC name Barium nitrite
Identifiers
CAS Number	13465-94-6
3D model (JSmol)	Interactive image
ChemSpider	145952
EC Number	236-709-9
PubChem CID	166820
UNII	5N5G361962
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
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

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.

Synthesis

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

Safety

Barium nitrite is toxic if ingested or inhaled, as both barium and the nitrite ion are toxic.