Zinc Sulphate Monohydrate Formula : ZnSO4.H20 CAS No.: 7446-19-7 EINECS No.: 231-793-3 Appearance: White free flowing powder, soluble in water, slightly soluble in alcohol, insoluble in acetone zinc sulphate mono granular fertilizer grade Item Specification Granular Fertilizer Grade Content 98% min Zinc: 33.5% min As: 5ppm max Pb: 10ppm max Cd: 10ppm max Size: 6-8mesh/ 2-4 mm