Phosphoryl fluoride
| |||
Names | |||
---|---|---|---|
IUPAC names
Phosphoryl trifluoride
Phosphorus trifluoride oxide | |||
Other names
Phosphorus oxyfluoride
Phosphoric trifluoride | |||
Identifiers | |||
3D model (JSmol)
|
|||
ChemSpider | |||
ECHA InfoCard | 100.033.419 | ||
EC Number |
| ||
PubChem CID
|
|||
UNII | |||
CompTox Dashboard (EPA)
|
|||
| |||
| |||
Properties | |||
Chemical formula
|
POF3 | ||
Molar mass | 103.9684 g/mol | ||
Appearance | Clear, colourless gas | ||
Boiling point | −39.7 °C (−39.5 °F; 233.5 K) | ||
Reacts | |||
Solubility | Reacts with alcohol and acid soluble in ether and hydrocarbons | ||
Structure | |||
tetrahedral | |||
Dipole moment
|
D | ||
Hazards | |||
Main hazards | Poison, corrosive, can form HF on contact with H2O | ||
Safety data sheet (SDS) | ICSC 0190 | ||
GHS labelling: | |||
Signal word
|
Danger | ||
H302, H314, H330, H372 | |||
P260, P264, P270, P271, P280, P284, P301+P312, P301+P330+P331, P303+P361+P353, P304+P340, P305+P351+P338, P310, P314, P320, P321, P330, P363, P403+P233, P405, P501 | |||
NFPA 704 (fire diamond) |
3
0
2 | ||
Related compounds | |||
Related compounds
|
Thiophosphoryl fluoride Phosphoryl chloride Phosphorus oxybromide Phosphorus trifluoride Phosphorus pentafluoride | ||
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). | |||
Infobox references | |||
Phosphoryl fluoride (commonly called phosphorus oxyfluoride) is a compound with the chemical formula POF3. It is a colorless gas that hydrolyzes rapidly.
Synthesis and reactions[]
Phosphorus oxyfluoride is prepared by partial hydrolysis of phosphorus pentafluoride.
Phosphorus oxyfluoride is the progenitor of the simple fluorophosphoric acids by hydrolysis. The sequence starts with difluorophosphoric acid:
- POF3 + H2O → HPO2F2 + HF
The next steps give monofluorophosphoric acid and phosphoric acid:
- HPO2F2 + H2O → H2PO3F + HF
- HPO3F + H2O → H3PO4 + HF
Phosphoryl fluoride combines with dimethylamine to produce dimethylaminophosphoryldifluoride (CH3)2NPOF2 and difluorophosphate and hexafluorophosphate ions.[1]
References[]
- ^ Cavell, R. G. (1968). "Chemistry of phosphorus fluorides. Part III. The reaction of thiophosphoryl-fluoride with dimethylamine and some properties of the dimethylaminothio- phosphoryl fluorides". Canadian Journal of Chemistry. 46 (4): 613. doi:10.1139/v68-100.
Wikimedia Commons has media related to Phosphoryl fluoride. |
Categories:
- Inorganic compound stubs
- Oxohalides
- Phosphorus halides
- Fluorides
- Phosphorus(V) compounds