Barium sulfite

Barium sulfite
IUPAC name Barium sulfite
Identifiers
CAS number	7787-39-5
PubChem	516931
ChemSpider	450991^Y
Jmol-3D images	Image 1
SMILES [Ba+2].[O-]S([O-])=O
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
Properties
Molecular 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
Y (verify) (what is: Y/N?) Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa)
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.

References

^ Lide, David R. (1998), Handbook of Chemistry and Physics (87 ed.), Boca Raton, FL: 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, accessed July 19, 2009.