ITEMSUNITZinc Sulphate monohydrate powder (feed grade)Zinc Sulphate monohydrate granular (fertilizer grade)Zn%min3530;33Cd(ppm) max1010Pb(ppm) max1010As(ppm) max55size----1-2mm;2-4mm Zinc sulphatemono ( monohydrate ) of our company has following features: High purity, lower heavy metal. Have FAMI-QS certification. 1. Molecular Formula : ZnSO4·H2O 2. CAS#:7446-19-7 3. Qualities are conformed to HG2934-2000 4. Packing : Net 25kgs plastic woven bags with inner liner or 1000kgs big bag or 50 lb paper bags. 5. Uses : It is mainly used as raw material for the production of lithophone and zinc salts. It is also used in synthetic fiber industry, zinc plating , pesticides, flotation, fungicide and water purification. In agriculture, it is mainly used in feed additive and trace element fertilize, etc. 6. Storage: Dry and hermetic.