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Structure

Antimony(III) sulfate consists of interconnected SbO6 octahedra, which the corners are bonded to the sulfate ion.²

Production

Antimony(III) sulfate was first produced in 1827 by the reaction of antimony(III) oxide and 18 molar sulfuric acid at 200 °C:³

The concentration of the sulfuric acid is important, as a lower concentration will produce basic antimony oxides, while a higher concentration will produce antimony(III) pyrosulfate. The reaction of elemental antimony and 18 M sulfuric acid will also produce antimony(III) sulfate:⁴

Chemical properties

Antimony sulfate is deliquescent, hydrolyzing in moist air and water, producing various basic antimony oxides and antimony(III) oxide. It is soluble in acids.⁵⁶⁷

Uses

Owing to its solubility, antimony sulfate has uses in the doping of semiconductors.⁸ It is also used for coating anodes in electrolysis and in the production of explosives and fireworks.⁹

Safety

Antimony(III) sulfate causes irritation to the skin and mucous membranes.¹⁰

Natural occurrence

Natural analogue of the exact compound is yet unknown. However, basic hydrated Sb sulfates are known as the minerals klebelsbergite¹¹¹² and coquandite.¹³¹⁴

References

1. Herbst, Karl Albert et al. (1985) Antimony and antimony compounds in Ullmann's Encyclopedia of Industrial Chemistry 5th ed., vol. A3, p. 70. ISBN 3-527-20103-3. /wiki/ISBN_(identifier) ↩

2. R. Mercier; J. Douglade; J. Bernard (1976). "Structure cristalline de Sb2O3.3SO3". Acta Crystallographica Section B (in French). 32 (10): 2787–2791. doi:10.1107/S0567740876008881. /wiki/Doi_(identifier) ↩

3. R. Mercier; J. Douglade; J. Bernard (1976). "Structure cristalline de Sb2O3.3SO3". Acta Crystallographica Section B (in French). 32 (10): 2787–2791. doi:10.1107/S0567740876008881. /wiki/Doi_(identifier) ↩

4. Herbst, Karl Albert et al. (1985) Antimony and antimony compounds in Ullmann's Encyclopedia of Industrial Chemistry 5th ed., vol. A3, p. 70. ISBN 3-527-20103-3. /wiki/ISBN_(identifier) ↩

5. R. Mercier; J. Douglade; J. Bernard (1976). "Structure cristalline de Sb2O3.3SO3". Acta Crystallographica Section B (in French). 32 (10): 2787–2791. doi:10.1107/S0567740876008881. /wiki/Doi_(identifier) ↩

6. Herbst, Karl Albert et al. (1985) Antimony and antimony compounds in Ullmann's Encyclopedia of Industrial Chemistry 5th ed., vol. A3, p. 70. ISBN 3-527-20103-3. /wiki/ISBN_(identifier) ↩

7. Nicholas C. Norman (31 December 1997). Chemistry of arsenic, antimony, and bismuth. Springer. pp. 193–. ISBN 978-0-7514-0389-3. 978-0-7514-0389-3 ↩

8. Method of forming phase change layer, method of manufacturing a storage node using the same, and method of manufacturing phase change memory device using the same – Samsung Electronics Co., Ltd. Freepatentsonline.com (2007-01-02). Retrieved on 2011-12-23. http://www.freepatentsonline.com/y2008/0156651.html ↩

9. Herbst, Karl Albert et al. (1985) Antimony and antimony compounds in Ullmann's Encyclopedia of Industrial Chemistry 5th ed., vol. A3, p. 70. ISBN 3-527-20103-3. /wiki/ISBN_(identifier) ↩

10. Antimony(III) Sulfate Material Safety Data Sheet Archived 2012-04-26 at the Wayback Machine. Prochemonline. http://prochemonline.com/upload/MSDS/1136.Antimony(III)Sulfate.pdf ↩

11. "Klebelsbergite". https://www.mindat.org/min-2223.html ↩

12. "List of Minerals". 21 March 2011. https://www.ima-mineralogy.org/Minlist.htm ↩

13. "Coquandite". https://www.mindat.org/min-1125.html ↩

14. "List of Minerals". 21 March 2011. https://www.ima-mineralogy.org/Minlist.htm ↩