Back دیسولفور AZB دیسولفور Persian Disoufre French Dikén Hungarian 二硫黄 Japanese Disumpor Serbo-Croatian Disumpor Serbian இருகந்தகம் Tamil Thioxy Vietnamese 二硫 Chinese
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| Names | |
|---|---|
| IUPAC name
Disulfur[1]
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| Systematic IUPAC name
Disulfene | |
| Other names
Diatomic sulfur
Sulfur dimer | |
| Identifiers | |
3D model (JSmol)
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| ChEBI | |
| ChemSpider | |
| 753 | |
PubChem CID
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CompTox Dashboard (EPA)
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| Properties | |
| S2 | |
| Molar mass | 64.12 g·mol−1 |
| 0 D | |
| Thermochemistry | |
Heat capacity (C)
|
32.51 kJ K−1 mol−1 |
Std molar
entropy (S⦵298) |
228.17 J K−1 mol−1 |
Std enthalpy of
formation (ΔfH⦵298) |
128.60 kJ mol−1 |
| Related compounds | |
Related compounds
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Triplet oxygen |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Disulfur is the diatomic molecule with the formula S2.[2] It is analogous to the dioxygen molecule but rarely occurs at room temperature. This violet gas is the dominant species in hot sulfur vapors. S2 is one of the minor components of the atmosphere of Io, which is predominantly composed of SO2.[3] The instability of S2 is usually described in the context of the double bond rule.
- ^ ebi.ac.uk/chebi/searchId.do?chebiId=29387
- ^ Steudel, Ralf; Eckert, Bodo (2003). "Solid Sulfur Allotropes". Elemental Sulfur and Sulfur-Rich Compounds I. Topics in Current Chemistry. Vol. 230. pp. 58–68. doi:10.1007/b12110. ISBN 978-3-540-40191-9.
- ^ Lellouch, E. (January 2005). "Io's Atmosphere and Surface-Atmosphere Interactions". Space Science Reviews. 116 (1–2): 211–224. Bibcode:2005SSRv..116..211L. doi:10.1007/s11214-005-1957-z. S2CID 121867974.
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