![]() | |
Names | |
---|---|
Other names Pyrosulfuryl fluoride | |
Identifiers | |
3D model (JSmol) | |
ChemSpider | |
ECHA InfoCard | 100.032.624 |
EC Number |
|
PubChem CID | |
CompTox Dashboard (EPA) | |
| |
| |
Properties | |
F2O5S2 | |
Molar mass | 182.11 g·mol−1 |
Appearance | colorless liquid |
Density | 1.75 g/cm3 |
Melting point | –48 °C |
Boiling point | 50.8 °C |
reacts with water | |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). |
Disulfuryl fluoride is an inorganic compound of sulfur, fluorine, and oxygen with the chemical formula S2O5F2.
Autoclave heating of sulfur trioxide and calcium fluoride:
The compound can be produced by the reaction of SSF2 and FOSO2F in deuterated chloroform at −100 °C: [1]
It can also be produced in the reaction of iodine pentafluoride and sulfur trioxide. [2]
Other methods are also known. [3]
Pyrosulfuryl difluoride forms a colorless liquid that smokes slightly in the air. It causes severe suffocation and resembles phosgene in its action. [4] [5]
When heated, the compound is stable to a temperature of 200 °C.
It is slowly hydrolyzed by water:
It reacts with tetraethyl titanate to produce diethoxytitanium difluorosulfonate: [6]