... sulfate heptahydrate Molecular Formula: MgSO4nH2O(n=0,1,2,3,4,5,6,7)Molecular Weight: 120.37+18n (n= 0 ... ,1,2,3,4,5,6,7)CAS No: 10034-99-8 (MgSO47H2O)7487 ... can be used as artificial snow for the filming drama group. 4.Magnesium sulfate used in medicineCathartic, anti-inflammatory, reduces swelling, detoxification ...