Product Name: Magnesium Sulfate Place of Origin: China Features: 1) Main content 99. 5% 2) Appearance: White crystal 3) Used in food, fertilizer, additive, and for industry and agriculture applications. 4) technical grade: Main content 99. 5% min MgSO4 48. 59% min MgO 16. 27% min Mg 9. 81% min PH(5W/V%Sol) 5-8 Calcium(Ca) 0. 008% max Ferron(Fe) 0. 0015% max Chlorid(Cl) 0. 015% max Heavy metal (Pb) 0. 001 %max Arsenic(As) 0. 0002% max Insoluble 0. 001%max Size (mm) 0. 1-1 Inner packing: 25kg/PP net bag Outer packing: Dimensions: 80 x 50cm