magnesium sulphate

Magnesium sulphate heptahydrate
Purity: 99. 5% min.
Heavy metal: (Pb) : 0. 001% max.
Fe: 0. 002% max.
Cl: 0. 03% max.
As: 0. 0002% max.
Drying weight loss: 48-52%
PH: neutral
Clarity: qualified
Packing: 25kg / bag (p. P. Woven bag)
Minimum order Quantity: 1x 20'FCL (25mt / 20'FCL)
Loading port: Tianjin, China
Lead time: Within 20 days.