Potassium tetrachloroaurate (III)

Crystal structure
	__ K + __ Au 3+ __ Cl -
Crystal system	monoclinic
Space group	Pc (No. 7)
Lattice parameters	a = 8.671 Å ; b = 6.386 Å; c = 12.243 Å; β = 95.37 °;
General
Surname	Potassium tetrachloroaurate (III)
other names	Gold chloride potassium
Ratio formula	K [AuCl 4 ]
Brief description	yellow-orange powder
External identifiers / databases
EC number	237-190-1
ECHA InfoCard	100,033,795
PubChem	11337898
ChemSpider	9512843
Wikidata	Q4456675
properties
Molar mass	377.86 g mol −1
Physical state	firmly
Melting point	300 ° C
solubility	soluble in water
safety instructions
GHS labeling of hazardous substances Caution
H and P phrases	H: 315-319-335
	P: 261-280-305 + 351 + 338
	As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .

Potassium tetrachloroaurate , K [AuCl ₄ ] is an inorganic compound of tetrachloroauric acid with the alkali metal potassium .

properties

Potassium tetrachloroaurate is an odorless, yellow-orange powder. The compound is stable and photosensitive under normal conditions . The melting point is approx. 300 ° C. The potassium salt has a monoclinic crystal system with the space group Pc (space group no. 7) . The lattice parameters are a = 8.671 Å , b = 6.386 Å and c = 12.243 Å. The number of degrees of the β angle is 95.37 °. Template: room group / 7

use

Potassium tetrachloroaurate (III) is contained in clay baths. The solution is used to treat albumin paper .

safety instructions

The salt causes irritation on contact with the skin, eyes or respiratory tract. The chemical should not be swallowed as damage can occur.

Potassium tetrachloroaurate reacts violently with ammonia NH ₃ , strong oxidizing agents and powdered metals. Combustion of the substance can produce hydrogen chloride , among other things .

Individual evidence

↑ ^a ^b ^c data sheet Potassium tetrachloroaurate (III) from Acros, accessed on February 2, 2019.
↑ ^a ^b ^c ^d ^e ^f data sheet potassium tetrachloroaurate (III) (PDF) from Carl Roth , accessed on February 2, 2019.
↑ M. Bonamico, G. Dessy: The crystal structure of anhydrous potassium tetrachloroaurate (III) . Acta Cryst., 1973, pp. 1735-1736 , doi : 10.1107 / S0567740873005406 .

[ACROS-1] ta sheet Potassium tetrachloroaurate (III) from Acros, accessed on February 2, 2019.

[CARLROTH-2] ↑ ^a ^b ^c ^d ^e ^f data sheet potassium tetrachloroaurate (III) (PDF) from Carl Roth , accessed on February 2, 2019.

[3] M. Bonamico, G. Dessy: The crystal structure of anhydrous potassium tetrachloroaurate (III) . Acta Cryst., 1973, pp. 1735-1736 , doi : 10.1107 / S0567740873005406 .