Carbonyl sulfide

Carbonyl sulfide structure
Carbonyl sulfide
Carbonyl sulfide
Space-filling 3D model of carbonyl sulfide
Names
IUPAC names
Carbon oxide sulfide[source?]
Carbonyl sulfide[1]
Oxidosulfidocarbon[1]
Identifiers
3D model (JSmol)
ChEBI
ChemSpider
ECHA InfoCard 100.006.674
EC Number
  • 207-340-0
KEGG
UNII
UN number 2204
  • O=C=S
Properties
COS
Molar mass 60.075 g/mol
Appearance colorless gas
Odor sulfide-like
Density 2.51 g/L
Melting point −138.8 °C (−217.8 °F; 134.3 K)
Boiling point −50.2 °C (−58.4 °F; 223.0 K)
0.376 g/100 mL (0 °C)
0.125 g/100 mL (25 °C)
Solubility very soluble in KOH, CS2
soluble in alcohol, toluene
-32.4·10−6 cm3/mol
0.65 D
Thermochemistry
Std enthalpy of
formation
ΔfHo298
-141.8 kJ/mol
Standard molar
entropy
So298
231.5 J/mol K
Specific heat capacity, C 41.5 J/mol K
Hazards
NFPA 704

4
3
1
 
Explosive limits 12-29%
Related compounds
Related compounds {{{value}}}
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Infobox references


Carbonyl sulfide is the chemical compound with the linear formula OCS.

  1. 1.0 1.1 International Union of Pure and Applied Chemistry (2005). Nomenclature of Inorganic Chemistry (IUPAC Recommendations 2005). Cambridge (UK): RSCIUPAC. ISBN 0-85404-438-8. p. 292. Electronic version.

Carbonyl sulfide

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