Magnesium Sulphate We offer Magnesium Sulphate, which is used in agriculture and gardening to rectify Magnesium deficiency in soil. Following are the general specification of Magnesium Sulphate manufactured by us: Purity as MgSo4.7H2O 99.90% (m/m) Magnesium Sulphate 48.5% (m/m) Magnesium Oxide as MgO 16% (m/m) Iron as Fe 5 ppm pH of 5% aqueous solution 7 % + 0.5% Chlorides of Cl 300 ppm Chlorides of K and Na 0.1% each Sulphate of K and Ca 0.1% each Calcium as Ca 300 ppm Heavy metals as Pb 2 ppm Arsenic as As203 2 ppm Packing: Packing is done in 25 kg / 50 kg laminated strong woven HDPE / PP bags. We also pack them in bags of 1.2 MT capacity as per the customer requirements.