... color solution, which leads to hydrogen or carbon monoxide at high temperature can be reduced to metallic copper. Mainly used for ... electronic industries, glass, ceramic, enamel, paint industry, agent for take away, fungicides, solar heat absorber surface, reducing tobacco tar, artificial rainfall ... ---Acid insoluble ≤%0.010.20.2Cl¯ ≤%0.010.20.2 High quality black copper oxide plating grade