Tungsten (V) bromide

Crystal structure
	__ W 5+ __ Br -
General
Surname	Tungsten (V) bromide
other names	Tungsten tabromide
Ratio formula	WBr 5
Brief description	dark gray solid
External identifiers / databases
PubChem	139467
Wikidata	Q4096865
properties
Molar mass	583.36 g mol −1
Physical state	firmly
Melting point	286 ° C
boiling point	333 ° C
solubility	reacts with water
safety instructions
GHS hazard labeling ; no classification available
GHS hazard labeling ; no classification available
	As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .

Tungsten (V) bromide is an inorganic chemical compound of the tungsten from the group of bromides .

Extraction and presentation

Tungsten (V) bromide can be obtained by reacting tungsten with bromine at 600–1000 ° C. Depending on the reaction conditions, tungsten (VI) bromide and some tungsten oxide bromide WOBr _{4 are also formed} . Then tungsten (V) bromide must be purified by sublimation and simultaneous decomposition of the tungsten (VI) bromide.

{\ displaystyle \ mathrm {2 \ W + 5 \ Br_ {2} \ longrightarrow 2 \ WBr_ {5}}}

It can also be obtained by reducing tungsten (VI) chloride with hydrogen bromide .

properties

Tungsten (V) bromide is a dark gray, extremely hydrolysis-sensitive solid with green shimmering crystals. It decomposes on contact with water. It is well soluble in dry ether, benzene , toluene and carbon disulfide with a red color. It dissolves less well in carbon tetrachloride and trichloromethane .

Individual evidence

↑ ^a ^b ^c ^d Georg Brauer (Ed.) U. a .: Handbook of Preparative Inorganic Chemistry. 3rd, revised edition. Volume III, Ferdinand Enke, Stuttgart 1981, ISBN 3-432-87823-0 , p. 1561.
↑ ^a ^b ^c W. M. Haynes (Ed.): CRC handbook of chemistry and physics. A ready-reference book of chemical and physical data . founded by David R. Lide. 93rd edition. CRC Press, Boca Raton 2012, ISBN 978-1-4398-8049-4 , pp. 4–97 (English, limited preview in Google Book Search).
↑ This substance has either not yet been classified with regard to its hazardousness or a reliable and citable source has not yet been found.
^ Erik Lassner, Wolf-Dieter Schubert: Tungsten: Properties, Chemistry, Technology of the Elements, Alloys, and Chemical Compounds . Springer, 1999, ISBN 0-306-45053-4 , pp. 171 ( limited preview in Google Book search).

[brauer-1] Georg Brauer (Ed.) U. a .: Handbook of Preparative Inorganic Chemistry. 3rd, revised edition. Volume III, Ferdinand Enke, Stuttgart 1981, ISBN 3-432-87823-0 , p. 1561.

[W._M._Haynes-2] W. M. Haynes (Ed.): CRC handbook of chemistry and physics. A ready-reference book of chemical and physical data . founded by David R. Lide. 93rd edition. CRC Press, Boca Raton 2012, ISBN 978-1-4398-8049-4 , pp. 4–97 (English, limited preview in Google Book Search).

[NV-3] This substance has either not yet been classified with regard to its hazardousness or a reliable and citable source has not yet been found.

[von_Erik_Lassner,_Wolf-Dieter_Schubert-4] Erik Lassner, Wolf-Dieter Schubert: Tungsten: Properties, Chemistry, Technology of the Elements, Alloys, and Chemical Compounds . Springer, 1999, ISBN 0-306-45053-4 , pp. 171 ( limited preview in Google Book search).