Phosphorus oxide bromide

Structural formula
General
Surname	Phosphorus oxide bromide
other names	Phosphorus oxybromide; Phosphoryl bromide; Phosphorus oxide tribromide; Phosphorus oxybromide;
Molecular formula	POBr 3
Brief description	white to yellow solid
External identifiers / databases
EC number	232-177-7
ECHA InfoCard	100.029.252
PubChem	522692
Wikidata	Q7187576
properties
Molar mass	286.69 g mol −1
Physical state	firmly
density	2.82 g cm −3 (25 ° C)
Melting point	56 ° C
boiling point	192 ° C
solubility	Decomposes in water
safety instructions
H and P phrases	H: 290-314-335
	EUH: 014
	P: 280-301 + 330 + 331-303 + 361 + 353-305 + 351 + 338-310-304 + 340
	As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .

Phosphorus bromide is an inorganic chemical compound of phosphorus from the group of bromides .

Extraction and presentation

Phosphorus bromide can be obtained by reacting phosphorus (V) bromide with phosphorus pentoxide .

{\ displaystyle \ mathrm {6 \ PBr_ {5} + P_ {4} O_ {10} \ longrightarrow 10 \ POBr_ {3}}}

properties

Phosphorus bromide is a white to yellow solid that is soluble in ether, benzene and sulfuric acid and forms a large-leaved crystal mass. The compound is very sensitive to elevated temperatures at which decomposition occurs with yellow coloration. It must therefore never be melted using a flame, but only with the help of hot water. Slow decomposition occurs in water with formation of phosphoric acid and hydrogen bromide .

Individual evidence

↑ ^a ^b ^c data sheet Phosphorus (V) oxybromide, 98% min from AlfaAesar, accessed on December 23, 2013 ( PDF )(JavaScript required) .
↑ ^a ^b ^c data sheet Phosphorus (V) oxybromide, puriss., ≥98.5% (AT) from Sigma-Aldrich , accessed on October 3, 2016 ( PDF ).
↑ ^a ^b Entry on phosphoryl tribromide in the GESTIS substance database of the IFA , accessed on January 9, 2019(JavaScript required) .
↑ ^a ^b Georg Brauer (Ed.), With the collaboration of Marianne Baudler u a .: Handbook of Preparative Inorganic Chemistry. 3rd, revised edition. Volume I, Ferdinand Enke, Stuttgart 1975, ISBN 3-432-02328-6 , p. 520.

[Alfa-1] ta sheet Phosphorus (V) oxybromide, 98% min from AlfaAesar, accessed on December 23, 2013 ( PDF )(JavaScript required) .

[Sigma-2] ta sheet Phosphorus (V) oxybromide, puriss., ≥98.5% (AT) from Sigma-Aldrich , accessed on October 3, 2016 ( PDF ).

[GESTIS-3] Entry on phosphoryl tribromide in the GESTIS substance database of the IFA , accessed on January 9, 2019(JavaScript required) .

[brauer-4] Georg Brauer (Ed.), With the collaboration of Marianne Baudler u a .: Handbook of Preparative Inorganic Chemistry. 3rd, revised edition. Volume I, Ferdinand Enke, Stuttgart 1975, ISBN 3-432-02328-6 , p. 520.