Appearance white crystal
Main content 99.5% min
MgSO4 48.6% min
MgO 16.3% min
Mg 9.8% min
Ph(5w/v%sol) 5-6.5
Ferron(Fe) 0.0008% max
Chlorid(Cl) 0.003% max
Heavy metal(Pb)0.0006 %max
Arsenic(As) 0.0001% max
Insoluble 0.0010% max
Size(mm)0.1-1