Sulfur tetrafluoride
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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) | ||
| Structure | |||
| Seesaw (C2v) | |||
| 0.632 D | |||
| 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 | ||
REL (Recommended)
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C 0.1 ppm (0.4 mg/m3) | ||
IDLH (Immediate danger)
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N.D. | ||
| 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).
Infobox references
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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 tetrafluoride is a useful reagent for the preparation of organofluorine compounds, some of which are important in the pharmaceutical and specialty chemical industries.