Appearance white crystal
Main content 98.0%/99.5% min
Mgso4 47.8% min
Mgo 16.0% min
Mg 9.5% min
Ph(5w/v%sol) 4.5-6.5
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