Appearance: white powder
Main content :99.0% min
Mgso4 :86.0% min
MGO :28.7% min
Mg :17.2% min
PH(5w/v%sol) :5-7
Ferron(fe) :0.0010% max
Chlorid(Cl): 0.005% max
Heavy metal(pb):0.0008 %max
Arsenic(as) :0.0002% max
water insoluble :0.0010% max
Size(mm):0.1