Zinc Sulfate Mono/Hepta Synonymy Zinc Sulphate M.Formula ZnSO4 CAS No. 7446-19-7/7446-20-0 Zinc sulfate monohydrate Specification Test/Property Specification Appearance White Powder ZnSO4 ·H2O 98% Min Zn 35% Min Arsenic (As) 5ppm Max Cadmium (Cd) 20ppm Max Lead (Pb) 20ppm Max Particle size I 80 mesh (0.18mm) Particle size II 5-10 mesh (1.7- 4mm) Particle size III 20-40 mesh (0.38- 0.83mm) Zinc sulfate Use -Fertilizer ingredient; -Feed additives; -Zinc Salts; -Activator in latex paper ; -Water purification; -Others. Handling/Storage/Toxicity Handling No special precautions necessary if used correctly. Storage Sealed, in cool and dry place Toxicity Non toxic Package 25kgs or 50lbs pp woven bag. 1000-1300kgs Tote. Or as customer’s requested.Kindly contact us at kaihope at pekchem dot com, thank you.