For catalysts, pyrotechnics, pesticides, paint, animal feed, fungicides, plating, corrosion and other industries, and manufacture of copper compounds. Name: Copper carbonate Molecular formula:CuCO3 Molecular weight:221.10 Specification: CP Standard:HG 3-1075-77 Appearance:Green crystalline powder Test itemTest StandardAssay52.5% 56.5%Acid-insoluble0.02%Chloride0.005%Nitrites0.05%Sulphates0.02%Ammonia0.2%Iron0.05%Hydrogen sulfide not precipitate0.75%