SF4
| Sulfur tetrafluoride | |
|---|---|
 | |
 | |
 | |
| IUPAC name | Sulfur(IV) fluoride |
| Other names | Sulfur tetrafluoride |
| Identifiers | |
| CAS number | 7783-60-0 |
| RTECS number | WT4800000 |
| Properties | |
| Molecular formula | SF4 |
| Molar mass | 108.07 g/mol |
| Appearance | colorless gas |
| Density | 1.95 g cm−3, −78 °C |
| Melting point | −121.0 °C |
| Boiling point | −38 °C |
| Solubility in water | decomp |
| Structure | |
| Coordination geometry | C2v |
| Dipole moment | 0.632 D |
| Hazards | |
| Main hazards | highly toxic corrosive |
| NFPA 704 |  0 4 2 |
| R-phrases | 14-26-34-37 |
| S-phrases | 26-36/37/39-38-45 |
| Related compounds | |
| Related compounds | SeF4 SF6 SCl2 S2Cl2 Me2NSF3 |
| Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) Infobox references | |
Sulfur tetrafluoride is the chemical compound with the formula SF4. This species exists as a gas at standard conditions. It is a corrosive species that releases dangerous HF upon exposure to water or moisture. Despite these unwelcome characteristics, this compound is a useful reagent for the preparation of organofluorine compounds, some of which are important in the pharmaceutical and specialty chemical industries. Aside from SF4, two other binary sulfur fluorides are well known, SF6 and S2F10.
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