Barium nitrite
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| PIN = Barium nitrite
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|Section1={{Chembox Identifiers
| CASNo = 13465-94-6
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| ChemSpiderID = 145952
| EC_number = 236-709-9
| PubChem = 166820
| UNII = 5N5G361962
| StdInChI=1S/Ba.2HNO2/c;2*2-1-3/h;2*(H,2,3)/q+2;;/p-2
| StdInChIKey = GJTDJAPHKDIQIQ-UHFFFAOYSA-L
| SMILES = N(=O)[O-].N(=O)[O-].[Ba+2]
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|Section2={{Chembox Properties
| Formula = Ba(NO2)2
| MolarMass = 229.34 g/mol
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| Density = 1.459
| MeltingPtC = 277
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|Section5={{Chembox Thermochemistry
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|Section7={{Chembox Hazards
| ExternalSDS =
| MainHazards = Toxic
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|Section8={{Chembox Related
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| OtherCompounds = Sodium nitrite, Potassium nitrite
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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.
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Synthesis
Barium nitrite can be made by reacting barium nitrate with lead metal sponge, or by reaction of lead nitrite with barium chloride.{{cite book | vauthors = Schlessinger GG | title = Inorganic laboratory preparations | date = 1962 | pages = 34–35 }}
Safety
Barium nitrite is toxic if ingested or inhaled, as both barium and the nitrite ion are toxic.{{cn|date=September 2023}}
References
{{Reflist}}
{{Barium compounds}}
{{Nitrites}}