... and aqueous ammonia, dissolved in acid and form corresponding copper salt, soluble in cyanide, sodium hydroxide, ammonium and ... alkali metal carbonate aqueous solution to form copper complexes. Insoluble in cold water, almost insoluble in water ... storage.Specifications: Cupric carbonate, basic AR Chemically pure Plating grade Industrial ItemIndexIndexIndexIndexContent (Cu) %52.5~56.552.5~ ...