Osmium tetrasulfide

Last updated
Osmium tetrasulfide
Names
Other names
Osmium(VIII) sulphide, tetrakis(sulfanylidene)osmium
Identifiers
3D model (JSmol)
PubChem CID
  • InChI=1S/Os.4S
    Key: CQZYSTFQZYMZKW-UHFFFAOYSA-N
  • S=[Os](=S)(=S)=S
Properties
OsS4
Molar mass 318.47 g·mol−1
Appearancedark brown crystals
insoluble
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Osmium tetrasulfide is an inorganic compound, a salt of osmium metal and hydrogen sulfide acid with the chemical formula OsS4. [1]

Contents

Properties

Osmium tetrasulfide forms dark brown crystals. It does not dissolve in cold water. It is soluble in dilute nitric acid. [2] It forms hydrates. [3]

Osmium tetrasulfide decomposes upon melting. [4]

Synthesis

Osmium tetrasulfide can be made by passing hydrogen sulfide through acidified solutions of osmium tetroxide: [5]

OsO4 + 4H2S → OsS4 + 4H2O

References

  1. ↑ Bloxam, Charles Loudon (1888). Chemistry, Inorganic and Organic: With Experiments. P. Blakiston. p. 447. Retrieved 4 April 2023.
  2. ↑ Gmelin, Leopold (1852). Hand Book of Chemistry. Cavendish Society. p. 411. Retrieved 4 April 2023.
  3. ↑ Comey, Arthur Messinger (1896). A Dictionary of Chemical Solubilities: Inorganic. Macmillan and Company. p. 275. Retrieved 4 April 2023.
  4. ↑ Sangeeta, D. (25 June 1997). Inorganic Materials Chemistry Desk Reference. CRC Press. p. 266. ISBN   978-0-8493-8900-9 . Retrieved 4 April 2023.
  5. ↑ Satya, Prakash (2013). Advanced Chemistry of Rare Elements. S. Chand Publishing. p. 615. ISBN   978-81-219-4254-6 . Retrieved 4 April 2023.
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