Thallium (III) bromide

General
Surname	Thallium (III) bromide
other names	Thallium tribromide
Molecular formula	TlBr 3
Brief description	yellowish solid
External identifiers / databases
EC number	237-232-9
ECHA InfoCard	100,033,833
PubChem	83669
Wikidata	Q4096895
properties
Molar mass	444.09 g mol −1
Physical state	firmly
density	3.65 g cm −3
Melting point	40 ° C
solubility	soluble in water and ethanol
safety instructions
GHS hazard labeling ; no classification available
GHS hazard labeling ; no classification available
Thermodynamic properties
ΔH f 0	−250 kJ mol −1
	As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .

Thallium (III) bromide is an inorganic chemical compound of thallium from the group of bromides .

Extraction and presentation

Thallium (III) bromide tetrahydrate can be obtained by reacting an aqueous suspension of thallium (I) bromide with bromine at 30 to 40 ° C.

{\ displaystyle {\ ce {TlBr + Br2 + 4H2O -> TlBr3.4H2O}}}

properties

Thallium (III) bromide occurs only as a hydrate because the anhydrous salt is unstable. Its tetrahydrate is a pale yellowish colored solid that is in the form of long needles and is easily soluble in water. It melts at 40 ° C, but at 30 ° C in air it begins to decompose into dark yellow thallium (I, III) bromide with the release of water and bromine. In the vacuum , this is done even at room temperature. With alkali bromides it forms various bromido complexes, such as B. the Rb [TlBr ₄ ] or the Rb ₃ [TlBr ₆ ].

use

Solutions of thallium (III) bromide are strong oxidizing agents and are used as such in organic chemistry and organometallic chemistry.

Individual evidence

↑ ^a ^b ^c ^d ^e 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. 874.
^ ^A ^b William M. Haynes: CRC Handbook of Chemistry and Physics, 93rd Edition . CRC Press, 2012, ISBN 1-4398-8049-2 , pp. 4–94 ( 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.
^ AF Holleman , N. Wiberg : Inorganische Chemie . 103rd edition. Volume 1: Basics and main group elements. Walter de Gruyter, Berlin / Boston 2016, ISBN 978-3-11-049585-0 , p. 1393 (reading sample: Part A - Basics of the chemistry of hydrogen. Google book search ).
^ Egon Wiberg, Nils Wiberg: Inorganic Chemistry . Academic Press, 2001, ISBN 0-12-352651-5 , pp. 1033 ( limited preview in Google Book search).
^ AJ Downs: Chemistry of Aluminum, Gallium, Indium, and Thallium . Springer, 1993, ISBN 0-7514-0103-X , p. 137 ( limited preview in Google Book search).

[brauer-1] 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. 874.

[William_M._Haynes-2] A ^b William M. Haynes: CRC Handbook of Chemistry and Physics, 93rd Edition . CRC Press, 2012, ISBN 1-4398-8049-2 , pp. 4–94 ( 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.

[4] AF Holleman , N. Wiberg : Inorganische Chemie . 103rd edition. Volume 1: Basics and main group elements. Walter de Gruyter, Berlin / Boston 2016, ISBN 978-3-11-049585-0 , p. 1393 (reading sample: Part A - Basics of the chemistry of hydrogen. Google book search ).

[Egon_Wiberg,_Nils_Wiberg-5] Egon Wiberg, Nils Wiberg: Inorganic Chemistry . Academic Press, 2001, ISBN 0-12-352651-5 , pp. 1033 ( limited preview in Google Book search).

[A.J._Downs-6] AJ Downs: Chemistry of Aluminum, Gallium, Indium, and Thallium . Springer, 1993, ISBN 0-7514-0103-X , p. 137 ( limited preview in Google Book search).