Gold, Iodide of

AuL 3 . Syn. Auric iodide , Tri-iodide of gold , Gold teriodide , Auri iodum . Prep. Add a solution of trichloride of gold to one of iodide of pota ium. The resulting precipitate is at first redi olved on agitation, a soluble double iodide being formed; subsequently the iodide of gold is precipitated, leaving the supernatant liquor free of colour. Prop., Uses, . A dark-green powder, easily soluble in hydriodic acid. It is occasionally employed as a medicine, and, like other preparations of gold, is of an alterative character.— Dose. About 1 ⁄ 16 th of a grain.