Carbonyl sulfide



Carbonyl sulfide
IUPAC name carbonyl sulfide
Identifiers
CAS number 463-58-1
SMILES O=C=S
Properties
Molecular formula COS
Molar mass 60.07 g mol−1
Density 0.00251 g cm−3
Melting point

−139 °C

Boiling point

−50 °C

Hazards
MSDS Carbonyl sulfide MSDS
NFPA 704
4
3
0
 
Except where noted otherwise, data are given for
materials in their standard state
(at 25 °C, 100 kPa)
Infobox disclaimer and references

Carbonyl sulfide is the carbon disulfide.

This compound is found to origin of life.[1]

Occurence and applications

Carbonyl sulfide is the major sulfur compound naturally present in the atmosphere at 0.5 (± 0.05) synthesis gas.

Measurements on the Antarctica sulfuric acid.

Carbonyl sulfide is a potential fumigant and a replacement for interstellar medium.

Synthesis

It was first described in 1841,[2] but was apparently mischaracterized. It forms when sulfuric acid. The resulting gas contains significant amounts of byproducts and requires purification.[3]

KNCS + 2 H2SO4 + H2O → KHSO4 + NH4HSO4 + COS

References

  1. ^ Luke Leman, Leslie Orgel, M. Reza Ghadiri (2004). "Carbonyl Sulfide–Mediated Prebiotic Formation of Peptides". Science 306 (5694): 283 - 286. doi:10.1126/science.1102722.
  2. ^ Couërbe, J. P. "Ueber den Schwefelkohlenstoff Journal für Praktische Chemie 1841, Volume 23, pp. 83-124.DOI: 10.1002/prac.18410230105
  3. ^ Ferm R. J. (1957). "The Chemistry of Carbonyl sulfide". Chemical Reviews 57 (4): 621-640. doi:10.1021/cr50016a002.

Further reading

  • Beck, M. T.; Kauffman, G. B. (1985). "COS and C3S2: The Discovery and Chemistry of Two Important Inorganic Sulfur Compounds". Polyhedron 4 (5): 775-781. doi:10.1016/S0277-5387(00)87025-4.
  • Crutzen, P. (1976). "The possible importance of COS for the sulfate layer of the stratosphere". Geophys. Res. Lett. 3: 73–76.
  • Svoronos P. D. N., Bruno T. J. (2002). "Carbonyl sulfide: A review of its chemistry and properties". Industrial & Engineering Chemistry Research 41 (22): 5321-5336. doi:10.1021/ie020365n.
 
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