... 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 (MgSO47H2 Specification (Up to USP ... for ABS and PVC resin6.Magnesium sulfate whitch contains a small amount of crystal water or non-crystalline water can be used for organic ...