Gold (III) bromide

Structural formula
General
Surname	Gold (III) bromide
other names	Gold tribromide; Aurum bromatum;
Molecular formula	AuBr 3
Brief description	gray powder
External identifiers / databases
EC number	233-654-2
ECHA InfoCard	100.030.582
PubChem	82525
Wikidata	Q419635
properties
Molar mass	436.68 g mol −1
Physical state	firmly
Melting point	160 ° C
solubility	soluble in water and ethanol
safety instructions
GHS labeling of hazardous substances danger
H and P phrases	H: 314
	P: 280-305 + 351 + 338-310
Thermodynamic properties
ΔH f 0	−53.3 kJ / mol
	As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .

Bromide gold (III) is a chemical compound from the group of bromides .

Extraction and presentation

Gold (III) bromide can be obtained directly by reacting the elements gold and bromine .

{\ displaystyle \ mathrm {2 \ Au + 3 \ Br_ {2} \ longrightarrow 2 \ AuBr_ {3}}}

properties

Gold (III) bromide is a gray solid. It decomposes at a temperature above 160 ° C. The compound has a monoclinic crystal structure ( space group P 2 ₁ / c (space group no. 14) , lattice parameters a = 6.83 Å , b = 20.4 Å, c = 8.11 Å, β = 119.7 °) and is in the form of a planar dimer Au ₂ Br ₆ . Template: room group / 14

use

Gold (III) bromide is used as a homeopathic medicine.

Individual evidence

↑ ^a ^b ^c ^d data sheet Gold (III) bromide from Sigma-Aldrich , accessed on June 26, 2011 ( PDF ).
↑ ^a ^b ^c Margitta Albinus: Hager's handbook of pharmaceutical practice . 1993, ISBN 978-0-387-52640-9 ( page 329 in the Google book search).
↑ David R. Lide (Ed.): CRC Handbook of Chemistry and Physics . 90th edition. (Internet version: 2010), CRC Press / Taylor and Francis, Boca Raton, FL, Standard Thermodynamic Properties of Chemical Substances, pp. 5-5.
^ AF Holleman , E. Wiberg , N. Wiberg : Textbook of Inorganic Chemistry . 101st edition. Walter de Gruyter, Berlin 1995, ISBN 3-11-012641-9 , p. 1363.
↑ KP Lörcher, J. Strähle: The crystal structure of gold (III) bromide. In: Zeitschrift für Naturforschung B , 30, 1975, pp. 662-664, doi : 10.1515 / znb-1975-9-1002
^ F. Hulliger: Structural chemistry of layer-type phases . 1977, ISBN 978-90-277-0714-7 ( page 165 in the Google book search).

[Sigma-1] ta sheet Gold (III) bromide from Sigma-Aldrich , accessed on June 26, 2011 ( PDF ).

[Hager-2] Margitta Albinus: Hager's handbook of pharmaceutical practice . 1993, ISBN 978-0-387-52640-9 ( page 329 in the Google book search).

[CRC90_5_5-3] David R. Lide (Ed.): CRC Handbook of Chemistry and Physics . 90th edition. (Internet version: 2010), CRC Press / Taylor and Francis, Boca Raton, FL, Standard Thermodynamic Properties of Chemical Substances, pp. 5-5.

[HoWi-4] AF Holleman , E. Wiberg , N. Wiberg : Textbook of Inorganic Chemistry . 101st edition. Walter de Gruyter, Berlin 1995, ISBN 3-11-012641-9 , p. 1363.

[5] KP Lörcher, J. Strähle: The crystal structure of gold (III) bromide. In: Zeitschrift für Naturforschung B , 30, 1975, pp. 662-664, doi : 10.1515 / znb-1975-9-1002

[Hullinger-6] F. Hulliger: Structural chemistry of layer-type phases . 1977, ISBN 978-90-277-0714-7 ( page 165 in the Google book search).