Osmium(II) chloride
Names
IUPAC name
Osmium(II) chloride
Other names
Osmium dichloride
Identifiers
3D model (JSmol)
ChemSpider
  • Key: OAGAGESCFZXSJR-UHFFFAOYSA-L
  • InChI=1S/2ClH.Os/h2*1H;/q;;+2/p-2
  • Cl[Os]Cl
Properties
OsCl2
Molar mass 261.14 g/mol
Appearance dark brown solid
Density 4.38 g/cm3
Melting point 450 °C (842 °F; 723 K)
Almost insoluble
Related compounds
Other anions
 Osmium dibromide
Other cations
 Iron(II) chloride
Palladium(II) chloride
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Osmium(II) chloride or osmium dichloride is an inorganic compound composed of osmium metal and chlorine with the chemical formula OsCl
2.[1]

Synthesis

Osmium(II) chloride can be prepared by disproportionation of osmium(III) chloride at 500 °C in vacuum.[2]

2OsCl3 → OsCl4 + OsCl2

Physical properties

Osmium(II) chloride is a hygroscopic dark brown solid that is insoluble in water.[3]

It is soluble in ethanol and ether.[4]

Chemical properties

Osmium(II) chloride does not react with hydrochloric acid and sulfuric acid.

It reacts with CO at 220 °C:

OsCl2 + 3CO → Os(CO)3Cl2

Uses

Osmium(II) chloride can be used for the catalytic production of trialkylamines.[5]

References

  1. ^ Satya, Prakash (2013). Advanced Chemistry of Rare Elements. S. Chand Publishing. p. 613. ISBN 978-81-219-4254-6. Retrieved 30 March 2023.
  2. ^ Singh, G. (2007). Chemistry Of Lanthanides And Actinides. Discovery Publishing House. p. 307. ISBN 978-81-8356-241-6. Retrieved 30 March 2023.
  3. ^ Leddicotte, G. W. (1961). The Radiochemistry of Osmium. Subcommittee on Radiochemistry, National Academy of Sciences-National Research Council; available from the Office of Technical Services, Department of Commerce. p. 5. Retrieved 30 March 2023.
  4. ^ Comey, Arthur Messinger (1896). A Dictionary of chemical solubilities. Macmillan and Company. p. 275. Retrieved 30 March 2023.
  5. ^ Macintyre, Jane E. (5 December 1996). Dictionary of Inorganic Compounds, Supplement 4. CRC Press. p. 221. ISBN 978-0-412-75020-5. Retrieved 30 March 2023.
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