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Chemical compound From Wikipedia, the free encyclopedia
Phosphoryl fluoride (commonly called phosphorus oxyfluoride) is a compound with the chemical formula POF3. It is a colorless gas that hydrolyzes rapidly. It has a critical temperature of 73 °C and a critical pressure of 4.25 bars.[1]
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Names | |||
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IUPAC names
Phosphoryl trifluoride Phosphorus trifluoride oxide | |||
Other names
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Identifiers | |||
3D model (JSmol) |
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ChemSpider | |||
ECHA InfoCard | 100.033.419 | ||
EC Number |
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PubChem CID |
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UNII | |||
CompTox Dashboard (EPA) |
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Properties | |||
POF3 | |||
Molar mass | 103.9684 g/mol | ||
Appearance | Colourless gas | ||
Boiling point | −39.7 °C (−39.5 °F; 233.5 K) | ||
Reacts | |||
Solubility | Reacts with alcohol and acid, soluble in diethyl ether and hydrocarbons | ||
1.76 D[1] | |||
Structure | |||
Tetrahedral at the P atom | |||
Hazards | |||
Occupational safety and health (OHS/OSH): | |||
Main hazards |
Poison, corrosive, can form HF on contact with H2O | ||
GHS labelling: | |||
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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) | |||
Safety data sheet (SDS) | ICSC 0190 | ||
Related compounds | |||
Related compounds |
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Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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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:
The next steps give monofluorophosphoric acid and phosphoric acid:
Phosphoryl fluoride combines with dimethylamine to produce dimethylaminophosphoryl difluoride (H3C−)2N−P(=O)F2 and difluorophosphate and hexafluorophosphate ions.[2]
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