Peroxydisulfuryl difluoride
From Wikipedia, the free encyclopedia
 | |
| Identifiers | |
|---|---|
3D model (JSmol) |
|
| ChemSpider | |
PubChem CID |
|
CompTox Dashboard (EPA) |
|
| |
| |
| Properties | |
| F2O6S2 | |
| Molar mass | 198.11 g·mol−1 |
| Appearance | colorless liquid |
| Density | 1.645 g/cm3 |
| Melting point | −55.4 °C (−67.7 °F; 217.8 K) |
| Boiling point | 67.1 °C (152.8 °F; 340.2 K) |
| reacts with water | |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
| |
Peroxydisulfuryl difluoride is an inorganic compound from the group of peroxides.[1] The chemical formula is F2O6S2.
Peroxydisulfuryl difluoride can be obtained by the reaction of sulfur trioxide with fluorine in the presence of silver(II) fluoride or by electrolysis of fluorosulfuric acid.[2]
- 2SO3 + F2 → S2O6F2
It is also possible to prepare it by reacting chromium(V) fluoride with sulfur trioxide:[3]
- CrF5 + 5SO3 → S2O6F2 + Cr(SO3F)3
or by the reaction between fluorosulfuric acid and dioxygenyl hexafluoroarsenate:[4]
- 2HSO3F + 2[O2][AsF6] → S2O6F2 + 2O2 + 2AsF5 + 2HF
Physical properties
Peroxydisulfuryl difluoride is a colorless liquid with an unpleasant odor that hydrolyzes with water to produce oxygen and fluorosulfuric acid. The compound can ignite organic materials upon contact.[2]
Chemical properties
It reacts with cesium fluorosulfonate and silver fluorosulfonate to produce the divalent silver compound CsAg(SO3F)3.[5]
Iodine(I) fluorosulfonate can be obtained from iodine and peroxydisulfuryl difluoride:[6]
- I2 + S2O6F2 → 2ISO3F