AuCl₃ + HCl → HAuCl₄

Reactants:

• AuCl₃ – Gold(III) trichloride
  • Other names: Gold(III) chloride , Auric chloride , Gold trichloride ... show more[AuCl3] , AuCl3 show less
  • Appearance: Red crystals (anhydrous); golden, yellow crystals (monohydrate)
• HCl – Chlorane , Hydrogen chloride
  • Other names: Hydrochloric acid , M , Uriatic acid ... show moreHydronium chloride , Chlorhydric Acid , Hydrochloric acid gas , HCl , Anhydrous hydrogen chloride , Hydrochloric acid, anhydrous , Aqueous hydrogen chloride , [Note: Often used in an aqueous solution.] show less
  • Appearance: Colorless, transparent liquid, fumes in air if concentrated ; Colorless gas ; Colourless compressed liquefied gas with pungent odour ; Colorless to slightly yellow gas with a pungent, irritating odor. [Note: Shipped as a liquefied compressed gas.]

Products:

• HAuCl₄
  • Names: Chloroauric acid , Hydrogen tetrachloroaurate , Chlorauric acid ... show moreAurochloric acid , Aurate(1−) , Tetrachloro- , Hydrogen , (SP-4-1)- , Hydrogen aurichloride show less
  • Appearance: Orange-yellow needle-like crystals | hygroscopic