znso4 solubility 1,high Zinc content with low heavy metal 2,free sample 3 ... welcoming Specificationszinc sulfate solubility 1,high Zinc content with low heavy metal 2,free sample 3,SGS, ... alcohol and ketone..Package: Net 25kgs plastic woven bags with inner liner or 1000kgs big bag or 50 lb ... paper bags.7. Payment: T/T, L/C8. Specificaton:Specification: ITEMZnSO4 ...