Zinc electroplating additives 1)ZnSO4.7H2O%,98%;Zn,22% 2)Package,50kg/bag 3) ... Usage,feed grade minerals&trace element zinc electroplating additivesMolecular Formula: ZnSO4. (x) H2O (x=1 or 7) Molecular Weight: 179. ... agriculturally etc. ItemZinc sulphate monohydrateZinc sulphate heptahydrateFeed gradeTechnical gradeZinc sulphate (ZnSO4) %≥94.79697.398Zn %≥34.5352222.15Arsenic%≤0.00050.00050.00050 ...