Thiirane
Chemical compound / From Wikipedia, the free encyclopedia
Thiirane, more commonly known as ethylene sulfide, is the cyclic chemical compound with the formula C2H4S.[2] 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.
Quick Facts Names, Identifiers ...
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Names | |||
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Preferred IUPAC name
Thiirane | |||
Systematic IUPAC name
Thiacyclopropane | |||
Other names | |||
Identifiers | |||
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3D model (JSmol) |
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102379 | |||
ChEBI | |||
ChemSpider |
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ECHA InfoCard | 100.006.359 | ||
EC Number |
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1278 | |||
KEGG |
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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).
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For the class of compounds known as thiiranes, see Episulfide.