... .7H2O 2 White crystals 3 99.5% Fertilizer grade MgSO4.7H2O 4 Natural crystal 5 Woven bag with inner plastic Packaging ... 3 99% fertilizer grade MgSO4.7H2O 4 natural crystal 5 woven bag with inner plastic Magnesium Sulphate HeptahydrateMOLECULAR FORMULAR: ... industries: used in tanning, porcelain, pigment, match, fireproof materials, Mg-salt, dyeing, medicine and food additives;Extensively used in food ...