Magnesium sulfate heptahydrate (agriculture/industry/feed/medicine grade)
Appearance: White small granular
Main content: 98%min~99. 9% min
MgSO4 48. 59% min
MgO 16. 13% min
Mg 9. 68% min
PH(5W/V%Sol) 4-6. 5
Ferron(Fe) 0. 0015% max
Chlorid(Cl) 0. 005% max
Heavy metal (Pb) 0. 001 %max
Arsenic(As) 0. 0002% max
Insoluble 0. 001%max
Size (mm) 0. 1-1