~~Magnesium sulphate heptahydrate specifications                                      
Items  Standard Standard Low Fe-Standard
Purity ≥*8% ≥*9.5% ≥*9.5%
MgSO4 ≥*7.*6% ≥*8.*9% ≥*8.*9%
MgO ≥*6% ≥*6.*4% ≥*6.*4%
Mg ≥9.*5% ≥9.8% ≥9.8%
S ≥*1.8% ≥*2% ≥*2%
Cl ≤0.*0% ≤0.**4% ≤0.**4%
Fe *0ppm max *5ppm max 3ppm max
As *- 2ppm max 2ppm max
Cd *- 2ppm max 2ppm max
Pb *- 6ppm max 6ppm max
Insoluble in water ≤0.*0% ≤0.**0% ≤0.**0%
PH(5W/V%Sol) ****7 ****7 ****7
Size 0.**1mm 0.**0.5/  **3/  **4/  **7mm 0.**1mm
Appearance White crystal
Package *5kg,*0kg pp woven bag or FIBC bag
Magnesium sulphate Heptahydrate Application                                    
1.as micro fertilizer in agriculture
2.as feed addtive in feeding
3.apply in producing lithopone and zinc salt
4.as filler in leather making industry.
5.other application
 
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