copper arsenate

copper arsenate

[′käp·ər ′ärs·ən‚āt] (inorganic chemistry) Cu3(AsO4)2·4H2 O or Cu5H2(AsO4)4·2H2O Bluish powder, soluble in ammonium hydroxide and dilute acids, insoluble in water and alcohol; used as a fungicide and insecticide.