Magnesium Sulphate Heptahydrate

Dear Sirs:
We can supply Magnesium Sulphate Heptahydrate (White Crystalline) at competitive price,as following:
 MgO:16% min  Chloride:0.014% max   As:0.0004% max
 Fe:0.002% max  Pb:0.001% max
 Packing:in 50kg plastic bags.
If you interesting, please feel free to contact us for more details.
Best regards: