... , and for industry and agriculture magnesium sulfate heptahydrate1).MgSO4.7H2OMgSO4≥99%, Mg≥9.7%, As≤0.0002%, Pb≤0.0015%2 ... , in PP woven bag Magnesium sulphate features:1) Main content: 99.8%2) Appearance: white crystal3) Used in food, fertilizer, additive ... packing: 25kg/PP net bag Magnesium sulfate heptahydrate(MgSO4.7H2O) 99.8%,96%