... fertilizer/feed/industry Shape: powder/Granular Classification:sulphate Magnesium sulfate heptahydrate Magnesium sulfate heptahydrate Molecular Formula: MgSO4nH2O(n=0,1,2,3,4,5 ... as artificial snow for the filming drama group. 4.Magnesium sulfate used in medicineCathartic, anti-inflammatory, reduces swelling, detoxification,acesodyne ... fertilizer. MnSO4.7H2O size 0.1-0.5Magnesium sulfate heptahydrate