Phosphorus Pentabromide
Title: Phosphorus Pentabromide
CAS Registry Number: 7789-69-7
Additional Names: Phosphoric bromide; phosphorus perbromide
Molecular Formula: Br5P
Molecular Weight: 430.49
Percent Composition: Br 92.81%, P 7.20%
Line Formula: PBr5
Literature References: Review: Payne, "The Chemistry of Phosphorus Halides" in Topics in Phosphorus Chemistry Vol. 4, M. Grayson, E. J. Griffith, Eds. (Interscience, New York, 1967) pp 85-155.
Properties: Yellow, cryst mass. mp >100° with decompn. Dec by water or alcohol; sol in carbon disulfide or tetrachloride. Keep tightly closed. Corrosive.
Melting point: mp >100° with decompn
Use: Brominating agent for converting organic acids to acyl bromides.

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