Barium sulfite

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/cm3
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

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]

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

Lide, David R. (1998), Handbook of Chemistry and Physics (87 ed.), Boca Raton, Florida: CRC Press, pp. 4–45, ISBN 0-8493-0594-2
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.

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