Magnesium sulphate

Spec: - Magnesium sulphate.heptahydrate(MgSO4.7H2O) white crystal purity: 99.5% min iron(Fe):0.005% max Chloride(Cl): 0.15% max insoluble in water: 0.1% max - Magnesium sulphate.monohydrate (MgSO4.H2O) fertilizer grade graular form water-soluble Magnesium: 22% min total Magnesium: 27% min water-insoluble: 6% max pH value: 6 - Magnesium sulphate .anhydrous (MgSO4) white powder MgSO4: 99% min MgO: 32.66% min Magnesium: 19.6% min pH: 5-6.5 iron(Fe): 0.0015% max Chloride(Cl): 0.015% max water-insoluble: 0.01% max