Magnesium Sulphate Heptahydrate MgSO4·7H2O Appearance: white crystal powder;content: ≥99.5%;MgSO4≥46.5%;Mg≥9.5%;MgO≥15.8%;S≥12.8%;PH:5-6.5; chloride≤500ppm; Fe≤20ppm; heavy metals(Pb)≤12ppm;As≤2ppm;insoluble in water≤300ppm;size:0.1-1mm INQUIRY PRODUCT DETAIL 111111111111111111111 PREV: Magnesium Sulphate Anhydrous MgSO4 CAS:7487-88-9 NEXT: Copper Carbonate CuCO3