Thiirane
Thiirane, more commonly known as ethylene sulfide, is the cyclic chemical compound with the formula C2H4S. It is the smallest sulfur-containing heterocycle and the simplest episulfide. Like many organosulfur compounds, this species has a highly unpleasant odour. Thiirane is also used to describe any derivative of the parent ethylene sulfide.
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| Names | |||
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| Preferred IUPAC name
Thiirane | |||
| Systematic IUPAC name
Thiacyclopropane | |||
| Other names
2,3-Dihydrothiirene Ethylene sulfide | |||
| Identifiers | |||
3D model (JSmol) |
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| 102379 | |||
| ChEBI | |||
| ChemSpider | |||
| ECHA InfoCard | 100.006.359 | ||
| EC Number |
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| 1278 | |||
| KEGG | |||
| MeSH | ethylene+sulfide | ||
PubChem CID |
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| RTECS number |
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| UNII | |||
| UN number | 1992 | ||
CompTox Dashboard (EPA) |
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| Properties | |||
| C2H4S | |||
| Molar mass | 60.11 g·mol−1 | ||
| Appearance | Pale, yellow liquid | ||
| Density | 1.01 g cm−3 | ||
| Melting point | −109 °C (−164 °F; 164 K) | ||
| Boiling point | 56 °C; 133 °F; 329 K | ||
| Vapor pressure | 28.6 kPa (at 20 °C) | ||
| Thermochemistry | |||
Std enthalpy of formation (ΔfH⦵298) |
51-53 kJ mol−1 | ||
Std enthalpy of combustion (ΔcH⦵298) |
-2.0126 MJ mol−1 | ||
| Hazards | |||
| GHS labelling: | |||
| Danger | |||
| H225, H301, H318, H331 | |||
| P210, P261, P280, P301+P310, P305+P351+P338, P311 | |||
| NFPA 704 (fire diamond) | |||
| Flash point | 10 °C (50 °F; 283 K) | ||
| Related compounds | |||
Related heterocycles |
Ethylene oxide Aziridine Borirane | ||
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references | |||
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