Gold chloride explained

Gold chloride can refer to:

• Gold(I) chloride (gold monochloride), AuCl
• Gold(I,III) chloride (gold dichloride, tetragold octachloride), Au₄Cl₈
• Gold(III) chloride (gold trichloride, digold hexachloride), Au₂Cl₆
• Chloroauric acid, HAuCl₄ (brown gold chloride); or its sodium salt, sodium tetrachloroaurate, NaAuCl₄ (gold chloride, sodium gold chloride, yellow gold chloride), used as a histological stain