1.0 2010-04-08 22:10:39 UTC 2015-07-20 22:58:05 UTC FDB013347 Phosphoryl chloride Etherification and esterification agent for modification of food starch Like phosphate, phosphoryl chloride is tetrahedral in shape. It features three P-Cl bonds and one very strong P=O double bond, with an estimated bond dissociation energy of 533.5 kJ/mol. On the basis of bond length and electronegativity, the Schomaker-Stevenson rule suggests that the double bond form is very dominant (in contrast with POF3). The P=O bond does not resemble the ? bond in a carbonyl group as in a ketone. The appropriate description of the P-O interaction is a matter of long discussion. Older textbooks favor a description that invokes participation of the d-orbitals on phosphorus. Some of these d-orbitals project toward the O atom, overlapping with p-orbitals on oxygen. More modern texts seem to favor a description where the P-O ? bonding involves the ?* components of the P-Cl bonds. These descriptions do not consider a role for d-orbitals.; Phosphoryl chloride (commonly called phosphorus oxychloride) is a colourless liquid with the formula POCl3. It hydrolyses in moist air to phosphoric acid to release choking fumes of hydrogen chloride. It is manufactured industrially on a large scale from phosphorus trichloride and oxygen or phosphorus pentoxide. It is mainly used to make phosphate esters such as tricresyl phosphate. [PCl3O] Fosforoxychlorid OPCl3 Oric chloride Oric trichloride Orous oxychloride Oroxidchlorid Oroxychlorid Oroxychloride Ortrichloridoxid Orus chloride Orus chloride oxide (pocl3) Orus oxide chloride Orus oxide trichloride Orus oxychloride Orus oxytrichloride Orus trichloride oxide Orus(V) oxide chloride Orus(V) oxychloride Orus(V) trichloride oxide Oryl chloride Oryl trichloride Orylchlorid Oxychlorid fosforecny Phosphoric chloride Phosphoric trichloride Phosphorous oxychloride Phosphoroxidchlorid Phosphoroxychlorid Phosphoroxychloride Phosphortrichloridoxid Phosphorus chloride Phosphorus chloride oxide (POCl3) Phosphorus oxide chloride Phosphorus oxide trichloride Phosphorus oxychloride Phosphorus oxychloride [UN1810] [Corrosive] Phosphorus oxytrichloride Phosphorus trichloride oxide Phosphorus(v) oxide chloride Phosphorus(v) oxychloride Phosphorus(v) trichloride oxide Phosphoryl trichloride Phosphorylchlorid POCl3 Trichloridooxidoorus Trichloridooxidophosphorus Trichloroine oxide Trichloroorus oxide Trichlorooxoorus(V) Trichlorooxophosphorus(V) Trichlorophosphine oxide Trichlorophosphorus oxide Trichlorure de oryle Trichlorure de phosphoryle Cl3OP 153.332 151.875234255 phosphoroyl trichloride phosphorus oxychloride 10025-87-3 ClP(Cl)(Cl)=O InChI=1S/Cl3OP/c1-5(2,3)4 XHXFXVLFKHQFAL-UHFFFAOYSA-N belongs to the class of inorganic compounds known as halogen oxides. These are inorganic compounds containing an oxygen atom of an oxidation state of -2, in which the heaviest atom bonded to the oxygen is a halogen. Halogen oxides Inorganic compounds Homogeneous non-metal compounds Halogen organides Halogen oxides Inorganic oxides Halogen oxide Inorganic oxide phosphorus coordination entity Liquid melting_point Mp 1-1.5° logp 1.28 ChemAxon iupac phosphoroyl trichloride ChemAxon average_mass 153.332 ChemAxon mono_mass 151.875234255 ChemAxon smiles ClP(Cl)(Cl)=O ChemAxon formula Cl3OP ChemAxon inchi InChI=1S/Cl3OP/c1-5(2,3)4 ChemAxon inchikey XHXFXVLFKHQFAL-UHFFFAOYSA-N ChemAxon polar_surface_area 17.07 ChemAxon refractivity 25.37 ChemAxon polarizability 9.44 ChemAxon rotatable_bond_count 0 ChemAxon acceptor_count 1 ChemAxon donor_count 0 ChemAxon physiological_charge 0 ChemAxon formal_charge 0 ChemAxon Specdb::CMs 23743 Specdb::CMs 149099 Specdb::MsIr 6681 Specdb::MsIr 6682 Specdb::MsMs 70443 Specdb::MsMs 70444 Specdb::MsMs 70445 Specdb::MsMs 128946 Specdb::MsMs 128947 Specdb::MsMs 128948 Specdb::MsMs 2925085 Specdb::MsMs 2925086 Specdb::MsMs 2925087 HMDB34789 30336 #<Reference:0x000055ce30e266d0>