Titanium (III) bromide

Crystal structure
	__ Ti 3+ __ Br -
General
Surname	Titanium (III) bromide
other names	Titanium tribromide
Ratio formula	TiBr 3
Brief description	black-blue solid
External identifiers / databases
PubChem	136975
ChemSpider	120705
Wikidata	Q2436787
properties
Molar mass	287.58 g mol −1
Physical state	firmly
density	4.24 g cm −3
Melting point	550 ° C ° C (decomposition); 115 ° C (hexahydrate);
solubility	soluble in 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 .

Titanium (III) bromide is an inorganic chemical compound of titanium from the group of bromides .

Extraction and presentation

Titanium (III) bromide can be produced by reacting titanium (IV) bromide with hydrogen

{\ displaystyle \ mathrm {2 \ TiBr_ {4} + H_ {2} \ longrightarrow 2 \ TiBr_ {3} +2 \ HBr}}

or obtained directly from the elements.

{\ displaystyle \ mathrm {2 \ Ti + 3 \ Br_ {2} \ longrightarrow 2 \ TiBr_ {3}}}

The hexahydrate can be prepared by reducing titanium (IV) bromide in a hydrochloric acid solution, which precipitates when the solution is saturated with hydrobromic acid .

{\ displaystyle \ mathrm {TiBr_ {4} \ longrightarrow TiBr_ {3} \ longrightarrow TiBr_ {3} \ cdot 6H_ {2} O}}

properties

Titanium (III) bromide is available as black-blue, transparent blue-green crystals, which are soluble in water and decompose at 550 ° C into titanium (II) bromide and titanium (IV) bromide. Titanium (III) bromide occurs in two different crystal structures, the alpha form being the trigonal form of titanium (III) chloride with the space group R 3 (space group no.146) (a = 640 pm , c = 1870 pm) corresponds. The hexahydrate, which also exists, is a reddish-purple crystalline solid that melts at 115 ° C and decomposes at 400 ° C. It is soluble in water, methanol , ethanol and acetone , but insoluble in carbon tetrachloride and benzene . Template: room group / 146

Individual evidence

↑ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ ^j Georg Brauer (Ed.), With the collaboration of Marianne Baudler u. a .: Handbook of Preparative Inorganic Chemistry. 3rd, revised edition. Volume II, Ferdinand Enke, Stuttgart 1978, ISBN 3-432-87813-3 , pp. 1341ff.
↑ This substance has either not yet been classified with regard to its hazardousness or a reliable and citable source has not yet been found.
^ Jean D'Ans, Ellen Lax: Pocket book for chemists and physicists . Springer DE, 1997, ISBN 3-540-60035-3 , pp. 766 ( limited preview in Google Book search).

[brauer-1] ↑ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ ^j Georg Brauer (Ed.), With the collaboration of Marianne Baudler u. a .: Handbook of Preparative Inorganic Chemistry. 3rd, revised edition. Volume II, Ferdinand Enke, Stuttgart 1978, ISBN 3-432-87813-3 , pp. 1341ff.

[NV-2] This substance has either not yet been classified with regard to its hazardousness or a reliable and citable source has not yet been found.

[Jean_D'Ans,_Ellen_Lax-3] Jean D'Ans, Ellen Lax: Pocket book for chemists and physicists . Springer DE, 1997, ISBN 3-540-60035-3 , pp. 766 ( limited preview in Google Book search).