Back رباعي فلوريد الكبريت Arabic سولفور تترافلورید AZB Fluorid siřičitý Czech Schwefeltetrafluorid German Τετραφθοριούχο θείο Greek Sulfura tetrafluorido Esperanto Tetrafluoruro de azufre Spanish سولفور تترافلورید Persian Rikkitetrafluoridi Finnish Tétrafluorure de soufre French
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| Names | |||
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| IUPAC name
Sulfur(IV) fluoride
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| Other names
Sulfur tetrafluoride
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| Identifiers | |||
3D model (JSmol)
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| ChEBI | |||
| ChemSpider | |||
| ECHA InfoCard | 100.029.103 | ||
PubChem CID
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| RTECS number |
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| UNII | |||
| UN number | 2418 | ||
CompTox Dashboard (EPA)
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| Properties | |||
| SF4 | |||
| Molar mass | 108.07 g/mol | ||
| Appearance | colorless gas | ||
| Density | 1.95 g/cm3, −78 °C | ||
| Melting point | −121.0 °C | ||
| Boiling point | −38 °C | ||
| reacts | |||
| Vapor pressure | 10.5 atm (22 °C)[1] | ||
| Structure | |||
| Seesaw (C2v) | |||
| 0.632 D[2] | |||
| Hazards | |||
| Occupational safety and health (OHS/OSH): | |||
Main hazards
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highly reactive and toxic gas | ||
| NFPA 704 (fire diamond) | |||
| NIOSH (US health exposure limits): | |||
PEL (Permissible)
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none[1] | ||
REL (Recommended)
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C 0.1 ppm (0.4 mg/m3)[1] | ||
IDLH (Immediate danger)
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N.D.[1] | ||
| Safety data sheet (SDS) | ICSC 1456 | ||
| Related compounds | |||
Other anions
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Sulfur dichloride Disulfur dibromide Sulfur trifluoride | ||
Other cations
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Oxygen difluoride Selenium tetrafluoride Tellurium tetrafluoride | ||
Related sulfur fluorides
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Disulfur difluoride Sulfur difluoride Disulfur decafluoride Sulfur hexafluoride | ||
Related compounds
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Thionyl fluoride | ||
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Sulfur tetrafluoride is a chemical compound with the formula SF4. It is a colorless corrosive gas that releases dangerous hydrogen fluoride gas upon exposure to water or moisture. Sulfur tetrafluride is a useful reagent for the preparation of organofluorine compounds,[3] some of which are important in the pharmaceutical and specialty chemical industries.
- ^ a b c d NIOSH Pocket Guide to Chemical Hazards. "#0580". National Institute for Occupational Safety and Health (NIOSH).
- ^ Tolles, W. M.; W. M. Gwinn, W. D. (1962). "Structure and Dipole Moment for SF4". J. Chem. Phys. 36 (5): 1119–1121. Bibcode:1962JChPh..36.1119T. doi:10.1063/1.1732702.
- ^ Wang, C.-L. J. (2004). "Sulfur Tetrafluoride". In Paquette, L. (ed.). Encyclopedia of Reagents for Organic Synthesis. New York: J. Wiley & Sons. doi:10.1002/047084289X. hdl:10261/236866. ISBN 9780471936237.