“Phosphoryl fluoride”的意思、由来-开放百科全书

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Phosphoryl fluoride

释义

Synthesis and reactions
References

{{chembox
| Watchedfields = changed
| verifiedrevid =
| Name = Phosphoryl fluoride
| ImageFileL1 = Phosphoryl fluoride.svg
| ImageFileR1 = Phosphoryl-fluoride-3D-vdW.png
| IUPACName = Phosphoryl trifluoride
Phosphorus trifluoride oxide
| OtherNames = Phosphorus oxyfluoride
Phosphoric trifluoride
|Section1={{Chembox Identifiers
| EINECS = 236-776-4
| CASNo = 13478-20-1
| PubChem = 83516
| ChemSpiderID = 75351
| UNII = J2907TX5WS
| SMILES = F[P+](F)(F)[O-]
| SMILES1 = FP(F)(F)=O
| InChI = 1/F3OP/c1-5(2,3)4
| InChIKey = FFUQCRZBKUBHQT-UHFFFAOYAJ
| StdInChI = 1S/F3OP/c1-5(2,3)4
| StdInChIKey = FFUQCRZBKUBHQT-UHFFFAOYSA-N
|Section2={{Chembox Properties
| Formula = POF₃
| MolarMass = 103.9684 g/mol
| Appearance = Clear, colourless gas
| Density =
| Solubility = Reacts
| SolubleOther = Reacts with alcohol and acid
soluble in ether and hydrocarbons
| MeltingPt =
| BoilingPtC = -39.7
| Viscosity =
|Section3={{Chembox Structure
| MolShape = tetrahedral
| Dipole = D
|Section7={{Chembox Hazards
| ExternalSDS = ICSC 0190
| EUClass = {{hazchem C}}
| RPhrases = {{R14}}, {{R34}}, {{R36/37/38}}^[1]
| SPhrases = {{S1/2}}, {{S7/9}}, {{S26}}, {{S36/37/39}}, {{S45}}
| MainHazards = Poison, corrosive, can form HF on contact with H₂O
| NFPA-H = 3
| NFPA-F = 0
| NFPA-R = 2
| NFPA-S =
|Section8={{Chembox Related
| OtherCompounds = Thiophosphoryl fluoride
Phosphoryl chloride
Phosphorus oxybromide
Phosphorus trifluoride
Phosphorus pentafluoride
}}

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.^[2]

References

1. ^http://www.chemicalbook.com/ProductChemicalPropertiesCB3329830_EN.htm
2. ^{{cite journal|last=Cavell|first=R. G.|year=1968|title=Chemistry of phosphorus fluorides. Part III. The reaction of thiophosphoryl-fluoride with dimethylamine and some properties of the dimethylaminothio- phosphoryl fluorides|journal=Canadian Journal of Chemistry|volume=46|issue=4|page=613|url=http://www.nrcresearchpress.com/doi/pdf/10.1139/v68-100|accessdate=2 Feb 2012|doi=10.1139/v68-100}}

3 : Oxohalides|Phosphorus halides|Fluorides

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