Title: Phosphorus Oxybromide
CAS Registry Number: 7789-59-5
CAS Name: Phosphoryl bromide
Additional Names: phosphoryl tribromide
Molecular Formula: Br3OP
Molecular Weight: 286.69
Percent Composition: Br 83.61%, O 5.58%, P 10.80%
Line Formula: POBr3
Literature References: Prepd according to the equation: 3PBr5 + P2O5 ® 5POBr3: Hönigschmid, Hirschbold-Wittner, Z. Anorg. Allg. Chem. 243, 355 (1940); Johnson, Nunn, J. Am. Chem. Soc. 63, 141 (1941); Booth, Seegmiller, Inorg. Synth. 2, 151 (1946).
Properties: Thin plates, faint orange tint, d 2.822. mp 56° (in hot water). bp758 193° (dec). Slowly hydrolyzes in water forming H3PO4 and HBr. Sol in ether, benzene, chloroform, carbon disulfide, concd H2SO4. Store in sealed glass ampuls!
Melting point: mp 56° (in hot water)
Boiling point: bp758 193° (dec)
Density: d 2.822 |