Phosphorus pentabromide

Phosphorus (V ) bromide

Yellow solid

Fixed

105-107 ° C

Reacts violently with water

Risk

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Phosphorus pentabromide is a chemical compound selected from the group consisting of bromides.

Production and representation

Phosphorus pentabromide can be obtained by reaction of phosphorus (III ) bromide with bromine.

Properties

Phosphorus pentabromide is a yellow solid with a pungent odor. He is extremely hygroscopic, heat-and heat-sensitive and has a corrosive effect. Like the homologous phosphorus pentachloride and phosphorus pentafluoride it has a pentagonal- bipyramidal structure. Above 35 ° C, it decomposes to phosphorus (III) bromide, and bromine. In contrast to phosphorus pentachloride and phosphorus pentafluoride is formed with metal complexes no Bromokomplexe PBr6, but is to phosphorus (III ) bromide and Br reduced.

With it forms ammonium phosphorus nitride dibromide.