Antimony pentasulfide: Difference between revisions
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== Overview == | |||
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'''Antimony pentasulfide''' is an [[ | '''Antimony pentasulfide''' is an [[inorganic compound]] of [[antimony]] and [[sulfur]], also known as '''antimony red'''. It is a [[nonstoichiometric compound]] with a variable composition. Its exact structure is unknown.<ref>Arnold F. Holleman, Nils Wiberg: ''Lehrbuch der Anorganischen Chemie'', 102nd edition, de Gruyter, Berlin 2007, p. 849, ISBN 978-3-11-017770-1.</ref> Commercial samples are usually are contaminated with sulfur, which may be removed by washing with [[carbon disulfide]] in a [[Soxhlet extractor]]. | ||
==Production== | |||
Antimony pentasulfide can be produced by the reaction of antimony with sulfur at a temperature between 250-400 °C in an inert atmosphere. | |||
==Uses== | |||
It may be used as a red [[pigment]] and is one possible precursor to [[Schlippe's Salt]], Na<sub>3</sub>SbS<sub>4</sub>, which can be prepared according to the equation: | |||
:3 Na<sub>2</sub>S + Sb<sub>2</sub>S<sub>5</sub> + 9 H<sub>2</sub>O → 2 Na<sub>3</sub>SbS<sub>4</sub>·9H<sub>2</sub>O | |||
==Physical chemistry== | |||
Like many [[sulfide]]s, this compound liberates [[hydrogen sulfide]] upon treatment with [[strong acid]]s like [[hydrochloric acid]].<ref>[http://www.strem.com/catalog/printer.php?type=msds&catalog_number=93-5105 Strem MSDS]</ref> | |||
:6 HCl + Sb<sub>2</sub>S<sub>5</sub> → 2 SbCl<sub>3</sub> + 3 H<sub>2</sub>S + 2 S | |||
Analysis by [[Mössbauer spectroscopy]] indicates that this compound is a derivative antimony(III),<ref>{{cite journal | title = The oxidation number of antimony in antimony pentasulfide | journal = Inorganic and Nuclear Chemistry Letters | volume = 5 | issue = 1 | year = 1969 | pages = 21–25 | author = G. G. Long, J. G. Stevens, L. H. Bowen, S. L. Ruby | doi = 10.1016/0020-1650(69)80231-X }}</ref> explaining the production of [[antimony(III) chloride]], rather than [[antimony(V) chloride]], upon acidification. It is therefore not analogous to the phosphorus(V) compound [[phosphorus pentasulfide]]. | |||
==References== | |||
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{{Antimony compounds}} | |||
{{Cough and cold preparations}} | {{Cough and cold preparations}} | ||
[[Category:drug]] | |||
[[Category:Antitussives]] | [[Category:Antitussives]] | ||
[[Category:Antimony compounds]] | [[Category:Antimony compounds]] | ||
[[Category:Sulfides]] | [[Category:Sulfides]] | ||
Latest revision as of 18:00, 13 April 2015
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]
Overview
Antimony pentasulfide is an inorganic compound of antimony and sulfur, also known as antimony red. It is a nonstoichiometric compound with a variable composition. Its exact structure is unknown.[1] Commercial samples are usually are contaminated with sulfur, which may be removed by washing with carbon disulfide in a Soxhlet extractor.
Production
Antimony pentasulfide can be produced by the reaction of antimony with sulfur at a temperature between 250-400 °C in an inert atmosphere.
Uses
It may be used as a red pigment and is one possible precursor to Schlippe's Salt, Na3SbS4, which can be prepared according to the equation:
- 3 Na2S + Sb2S5 + 9 H2O → 2 Na3SbS4·9H2O
Physical chemistry
Like many sulfides, this compound liberates hydrogen sulfide upon treatment with strong acids like hydrochloric acid.[2]
- 6 HCl + Sb2S5 → 2 SbCl3 + 3 H2S + 2 S
Analysis by Mössbauer spectroscopy indicates that this compound is a derivative antimony(III),[3] explaining the production of antimony(III) chloride, rather than antimony(V) chloride, upon acidification. It is therefore not analogous to the phosphorus(V) compound phosphorus pentasulfide.
References
- ↑ Arnold F. Holleman, Nils Wiberg: Lehrbuch der Anorganischen Chemie, 102nd edition, de Gruyter, Berlin 2007, p. 849, ISBN 978-3-11-017770-1.
- ↑ Strem MSDS
- ↑ G. G. Long, J. G. Stevens, L. H. Bowen, S. L. Ruby (1969). "The oxidation number of antimony in antimony pentasulfide". Inorganic and Nuclear Chemistry Letters. 5 (1): 21–25. doi:10.1016/0020-1650(69)80231-X.
Template:Antimony compounds Template:Cough and cold preparations