Description
Gold(III) chloride, traditionally called auric chloride, is a chemical compound of gold and chlorine. With the molecular formula AuCl3, the name gold trichloride is a simplification, referring to the empirical formula. The Roman numerals in the name indicate that the gold has an oxidation state of +3, which is common for gold compounds. There is also another related chloride of gold, gold(I) chloride (AuCl). Chloroauric acid, HAuCl4, the product formed when gold dissolves in aqua regia, is sometimes referred to as “gold chloride” or “acid gold trichloride”. Gold(III) chloride is very hygroscopic and highly soluble in water as well as ethanol. It decomposes above 160°C or in light.
Synonyms
Trichlorogold;Gold(III) Chloride;
Molecular Weight
303.33
Molecular Formula
AuCl3
Melting Point
254ºC
Density
3.9 g/mL at 25ºC
Appearance
Dark red monoclinic crystals
EC Number
236-623-1
LogP
-8.99050
MDL Number
MFCD00014172
Symbol
GHS07,GHS05
