Barium sulfite

Names
IUPAC name Barium sulfite
Identifiers
CAS Number	7787-39-5 Y
3D model (JSmol)	Interactive image
ChemSpider	450991 Y
ECHA InfoCard	100.029.193
PubChemCID	516931
UNII	D71W8VF49C Y
CompTox Dashboard(EPA)	DTXSID00228489
InChI InChI=1S/Ba.H2O3S/c;1-4(2)3/h;(H2,1,2,3)/q+2;/p-2 Y Key: ARSLNKYOPNUFFY-UHFFFAOYSA-L Y InChI=1/Ba.H2O3S/c;1-4(2)3/h;(H2,1,2,3)/q+2;/p-2 Key: ARSLNKYOPNUFFY-NUQVWONBAA
SMILES [Ba+2].[O-]S([O-])=O
Properties
Chemical formula	BaSO3
Molar mass	217.391 g/mol
Appearance	whitemonoclinic crystals
Density	4.44 g/cm3
Melting point	decomposes
Solubility in water	0.0011 g/100 mL
Solubility	insoluble inethanol[1]
Related compounds
Otheranions	Barium sulfate Barium fluoride Barium chloride Barium bromide Barium iodide
Othercations	Calcium sulfite Magnesium sulfite
Except where otherwise noted, data are given for materials in theirstandard state (at 25 °C [77 °F], 100 kPa). Y verify (what is YN ?) Infobox references

Barium sulfite is theinorganic compound with thechemical formula BaSO₃. It is a white powder that finds few applications. It is an intermediate in thecarbothermal reduction ofbarium sulfate tobarium sulfide:^[2]

BaSO₄ + CO → BaSO₃ + CO₂

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