CuSO4.5H2O: 96% minimum Cuprum(Cu): 24.5% minimum Lead (Pb): 0.001% maximum Arsenic (As): 0.0005% maximum Cadmium (CD): 0.0005% maximum Usage: in industry, used in antiseptics Used as dyestuff in the processing of leather/textiles, pesticide in agriculture and more Packing: 25kg/bag with inner polythylene and outer paper-polyehylene bag