Gold (I) iodide

Crystal structure
	__ Au + __ I -
General
Surname	Gold (I) iodide
other names	Gold monoiodide
Ratio formula	AuI
Brief description	yellow solid
External identifiers / databases
EC number	233-656-3
ECHA InfoCard	100.030.584
PubChem	82526
Wikidata	Q4202650
properties
Molar mass	323.87 g mol −1
Physical state	firmly
density	8.25 g cm −3 (25 ° C)
Melting point	120 ° C (decomposition)
solubility	slow decomposition in water; soluble in liquid ammonia ; soluble in alkali iodides and alkali cyanides;
safety instructions
GHS labeling of hazardous substances Caution
H and P phrases	H: 315-319-335
	P: 261-305 + 351 + 338
	As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .

Gold (I) iodide is an inorganic chemical compound of gold from the group of iodides .

Extraction and presentation

Gold (I) iodide can be obtained by reacting a tetrachloridoauric acid solution with potassium iodide . It is also possible to manufacture by reacting gold and iodine in a protective atmosphere at around 390 ° C.

properties

Gold (I) iodide is a yellow, crystalline powder that gradually decomposes on contact with water, humidity or light. It has a tetragonal crystal structure with the space group P 4 ₂ / ncm (space group no. 138) , a = 4.359 Å , c = 13.711 Å. Template: room group / 138

Individual evidence

↑ ^a ^b ^c ^d ^e ^f data sheet Gold (I) iodide, 99.9% trace metals basis from Sigma-Aldrich , accessed on April 4, 2013 ( PDF ).
↑ ^a ^b ^c ^d Georg Brauer (Ed.), With the collaboration of Marianne Baudler a . a .: Handbook of Preparative Inorganic Chemistry. 3rd, revised edition. Volume II, Ferdinand Enke, Stuttgart 1978, ISBN 3-432-87813-3 , p. 1014.
^ Dale L. Perry: Handbook of Inorganic Compounds, Second Edition . Taylor & Francis US, 2011, ISBN 1-4398-1462-7 , pp. 486 ( limited preview in Google Book search).

[Sigma-1] ↑ ^a ^b ^c ^d ^e ^f data sheet Gold (I) iodide, 99.9% trace metals basis from Sigma-Aldrich , accessed on April 4, 2013 ( PDF ).

[brauer-2] Georg Brauer (Ed.), With the collaboration of Marianne Baudler a . a .: Handbook of Preparative Inorganic Chemistry. 3rd, revised edition. Volume II, Ferdinand Enke, Stuttgart 1978, ISBN 3-432-87813-3 , p. 1014.

[Dale_L._Perry-3] Dale L. Perry: Handbook of Inorganic Compounds, Second Edition . Taylor & Francis US, 2011, ISBN 1-4398-1462-7 , pp. 486 ( limited preview in Google Book search).