... )ZnSO4.H2O%,98%;Zn,33% 2)Package,50kg/bag 3)Usage,feed grade minerals&trace element Zinc Sulphate Feed GradeMolecular Formula: ZnSO4. (x) H2O ... agriculturally etc. ItemZinc sulphate monohydrateZinc sulphate heptahydrateFeed gradeTechnical gradeZinc sulphate (ZnSO4) %≥94.79697.398Zn %≥34.5352222.15Arsenic%≤0.00050.00050.00050 ...