7350. Phosphorus Pentabromide

Nomenclature

CAS number: 7789-69-7
Phosphoric bromide; phosphorus perbromide.
Br5P; mol wt 430.49.
Br 92.81%, P 7.20%.
PBr5.

Description and 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.

Use

Brominating agent for converting organic acids to acyl bromides.