Osmium tetrasulfide
| Names | |
|---|---|
| Other names
Osmium(VIII) sulphide, tetrakis(sulfanylidene)osmium
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| Identifiers | |
3D model (JSmol)
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PubChem CID
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| Properties | |
| OsS4 | |
| Molar mass | 318.47 g·mol−1 |
| Appearance | dark brown crystals |
| insoluble | |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Osmium tetrasulfide is an inorganic compound, a salt of osmium metal and hydrogen sulfide acid with the chemical formula OsS4.[1]
Synthesis
[edit]Osmium tetrasulfide can be made by passing hydrogen sulfide through acidified solutions of osmium tetroxide:[2]
- OsO4 + 4H2S → OsS4 + 4H2O
Physical properties
[edit]Osmium tetrasulfide forms dark brown crystals. It does not dissolve in cold water. It is soluble in dilute nitric acid.[3] It forms hydrates.[4]
Osmium tetrasulfide decomposes upon melting.[5]
References
[edit]- ^ Bloxam, Charles Loudon (1888). Chemistry, Inorganic and Organic: With Experiments. P. Blakiston. p. 447. Retrieved 4 April 2023.
- ^ Satya, Prakash (2013). Advanced Chemistry of Rare Elements. S. Chand Publishing. p. 615. ISBN 978-81-219-4254-6. Retrieved 4 April 2023.
- ^ Gmelin, Leopold (1852). Hand Book of Chemistry. Cavendish Society. p. 411. Retrieved 4 April 2023.
- ^ Comey, Arthur Messinger (1896). A Dictionary of Chemical Solubilities: Inorganic. Macmillan and Company. p. 275. Retrieved 4 April 2023.
- ^ Sangeeta, D. (25 June 1997). Inorganic Materials Chemistry Desk Reference. CRC Press. p. 266. ISBN 978-0-8493-8900-9. Retrieved 4 April 2023.
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