Barium sulfite

Barium sulfite is the barium salt of sulfurous acid with the chemical formula BaSO₃. It is a white powder which is used in paper manufacturing. Like other barium compounds, it is toxic.[2]

Barium sulfite

Names
IUPAC name Barium sulfite
Identifiers
CAS Number	7787-39-5
3D model (JSmol)	Interactive image
ChemSpider	450991
ECHA InfoCard	100.029.193
PubChem CID	516931
UNII	D71W8VF49C
CompTox Dashboard (EPA)	DTXSID00228489
InChI InChI=1S/Ba.H2O3S/c;1-4(2)3/h;(H2,1,2,3)/q+2;/p-2 Key: ARSLNKYOPNUFFY-UHFFFAOYSA-L 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	white monoclinic crystals
Density	4.44 g/cm^3
Melting point	decomposes
Solubility in water	0.0011 g/100 mL
Solubility	insoluble in ethanol[1]
Related compounds
Other anions	Barium sulfate Barium fluoride Barium chloride Barium bromide Barium iodide
Other cations	Calcium sulfite Magnesium sulfite
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Infobox references

It may be formed by the action of sulfur dioxide on barium oxide or barium hydroxide. It can also be formed by treating barium with sulfurous acid.

References

1. Lide, David R. (1998), Handbook of Chemistry and Physics (87 ed.), Boca Raton, Florida: CRC Press, pp. 4–45, ISBN 0-8493-0594-2
2. barium sulfite. Answers.com. McGraw-Hill Dictionary of Scientific and Technical Terms, McGraw-Hill Companies, Inc., 2003. http://www.answers.com/topic/barium-sulfite Archived 2009-02-07 at the Wayback Machine, accessed July 19, 2009.