znso4 solubility 1,high Zinc content with low heavy metal 2,free sample 3,SGS,BV,CIQ inspection welcoming Specificationszinc sulfate solubility 1,high ... : .1. Product name: Zinc Sulphate Mono/Hepta2. Chemical formula: ZnSO4 . H2O/ ZnSO4 . 7H2O3. Molecular Weight: 179.46/287.564. CAS No.: 7446 ... mainly used in feed additive and trace element fertilize, etc. znso4 solubility