Back تیونیل فلوئورید AZB Thionylfluorid German Tionila fluorido Esperanto Fluoruro de tionilo Spanish تیونیل فلوئورید Persian Fluorure de thionyle French Fluoruro di tionile Italian フッ化チオニル Japanese Fluorek tionylu Polish Тионилфторид Russian
| |||
| Names | |||
|---|---|---|---|
| IUPAC name
Thionyl fluoride
| |||
| Identifiers | |||
3D model (JSmol)
|
|||
| ChemSpider | |||
| ECHA InfoCard | 100.029.088 | ||
| EC Number |
| ||
PubChem CID
|
|||
| UNII | |||
CompTox Dashboard (EPA)
|
|||
| |||
| |||
| Properties | |||
| F2OS | |||
| Molar mass | 86.06 g·mol−1 | ||
| Appearance | colorless gas | ||
| Melting point | −110.5 °C (−166.9 °F; 162.7 K) | ||
| Boiling point | −43.8 °C (−46.8 °F; 229.3 K) | ||
| hydrolysis | |||
| Solubility | soluble in ethanol, ether, benzene | ||
| Vapor pressure | 75.7 kPa (-50 °C)[1] | ||
| Structure | |||
| trigonal pyramidal | |||
| Thermochemistry | |||
Std molar
entropy (S⦵298) |
278.6 J/mol·K[2] | ||
Std enthalpy of
formation (ΔfH⦵298) |
-715 kJ/mol[2] | ||
Std enthalpy of
combustion (ΔcH⦵298) |
56.8 J/mol·K[2] | ||
| Hazards | |||
| GHS labelling: | |||
 
| |||
| Danger | |||
| H300, H310, H314, H330 | |||
| P260, P262, P264, P270, P271, P280, P284, P301+P310, P301+P330+P331, P302+P350, P303+P361+P353, P304+P340, P305+P351+P338, P310, P320, P321, P322, P330, P361, P363, P403+P233, P405, P501 | |||
| Related compounds | |||
Related oxohalides
|
Thionyl chloride Thionyl bromide | ||
Related compounds
|
Nitrosyl fluoride Carbonyl fluoride | ||
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
| |||
Thionyl fluoride is the inorganic compound with the formula SOF
2. This colourless gas is mainly of theoretical interest, but it is a product of the degradation of sulfur hexafluoride, an insulator in electrical equipment. The molecule adopts a distorted pyramidal structure, with Cs symmetry. The S-O and S-F distances are 1.42 and 1.58 Å, respectively. The O-S-F and F-S-F angles are 106.2 and 92.2°, respectively. Thionyl chloride and thionyl bromide have similar structures, although these compounds are liquid at room temperature. Mixed halides are also known, such as SOClF, thionyl chloride fluoride.[3]
- ^ Thionyl fluoride in Linstrom, Peter J.; Mallard, William G. (eds.); NIST Chemistry WebBook, NIST Standard Reference Database Number 69, National Institute of Standards and Technology, Gaithersburg (MD) (retrieved 2014-05-11)
- ^ a b c "Thionyl fluoride".
- ^ Holleman, A. F.; Wiberg, E. "Inorganic Chemistry" Academic Press: San Diego, 2001. ISBN 0-12-352651-5.