What is "chloroauric acid"

n. (context inorganic compound English) The compound HAuCl₄ obtained by dissolving gold in aqua regia

Chloroauric acid is an inorganic compound with the chemical formula . Both the trihydrate and tetrahydrate are known. It is an orange-yellow solid, a common precursor to other gold compounds and an intermediate in the purification of gold metal. Both the trihydrate and tetrahydrate are available commercially.