Magensium sulphate heptahydrate(MgSO4.7H2O):
Heptahydrate magnesium sulphate granule 2-4mm, because it is no caking, so it is very popular In Japan, Korea and Europe market. And we have REACH certificate for heptahydrate magnesium sulphate, welcome to your inquiry.
Size: 2-4mm;
Purity: 99% or 99.5%
Appearance: granule