Silver arsenate, Ag₃AsO₄

Silver nitrate reacts with solutions of arsenic acid and arsenates, giving a chocolate-coloured precipitate of silver arsenate containing a small proportion of Silver nitrate, possibly in solid solution. Addition of silver arsenate, Ag₃AsO₄, to an aqueous solution of arsenic acid precipitates a white, crystalline compound, Ag₂O,2As₂O₅, decomposed by water into silver arsenate and arsenic acid.