Description
Tetrachloroauric(III) acid trihydrate, min. 99,0 %, p.a., Molar mass (M) 393,83 g/mol, Density (D) 3,9 g/cm³, CAS No. 16961-25-4, UN-Nr. 3260, EC No. 605-557-9, Empirical formula HAuCl4 · 3 H2O
Gold chloride is used as a counter stain for histological tissues after silver impregnation, e.g. Gomori’s silver stain.