Carbonyl sulfide
Carbonyl sulfide is the chemical compound with the linear formula O=C=S. It is a colorless flammable gas with an unpleasant odor. It is a linear molecule consisting of a carbonyl double bonded to a sulfur atom. Carbonyl sulfide can be considered to be intermediate between carbon dioxide and carbon disulfide, both of which are valence isoelectronic with it.
| Names | |
|---|---|
| IUPAC names
Carbonyl sulfide Oxidosulfidocarbon | |
| Systematic IUPAC name
Thioxomethanone | |
| Identifiers | |
3D model (JSmol) |
|
| ChEBI | |
| ChemSpider | |
| ECHA InfoCard | 100.006.674 |
| EC Number |
|
| KEGG | |
PubChem CID |
|
| UNII | |
| UN number | 2204 |
CompTox Dashboard (EPA) |
|
| |
SMILES
| |
| 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 |
Magnetic susceptibility (χ) |
−32.4×10−6 cm3/mol |
| 0.65 D | |
| Thermochemistry | |
Heat capacity (C) |
41.5 J/(mol⋅K) |
Std molar entropy (S⦵298) |
231.5 J/(mol⋅K) |
Std enthalpy of formation (ΔfH⦵298) |
−141.8 kJ/mol |
| Hazards | |
| GHS labelling: | |
| Danger | |
| H220, H280, H315, H319, H331, H335 | |
| P210, P261, P264, P271, P280, P302+P352, P304+P340, P305+P351+P338, P311, P312, P321, P332+P313, P337+P313, P362, P377, P381, P403, P403+P233, P405, P410+P403, P501 | |
| NFPA 704 (fire diamond) |
3
4
1 |
| Explosive limits | 12–29% |
| Safety data sheet (SDS) | Carbonyl sulfide MSDS |
| Related compounds | |
Related compounds |
Carbon dioxide Carbon disulfide Carbonyl selenide |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references | |
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.