We making and exporting zinc sulphate(znso4) heptahydrate,zinc sulphate monohydrate,provide high-quality,most competitive price. Zinc Sulphate(znso4)Properties: Molecular formula: ZnSO 4 . H 2 ... and dyeing, preserv agent;water treatment agent; mineral separation agent zinc sulfate two-layer packing, internal packing is PE bag , ... , no contact with acid and alkali and color matter Zinc Sulphate(znso4)