Magnesium sulphate heptahydrate (industrial grade)
1, Properties: Molecular formula:MgSO4 7H2O, Molecular weight:246.48, white or colorless crystal, odorless.
2, Technical index
|
Appearance
|
White granular
|
|
Main content
|
 99.5% |
|
MgSO4
|
48.59% |
|
MgO
|
16.27% |
|
Mg
|
9.81% |
|
PH(5W/V%Sol)
|
5-8
|
|
Iron(Fe)
|
 0.002% |
|
Cl
|
0.02% |
|
Heavy metal (Pb)
|
0.001% |
|
As
|
0.0002% |
|
Insoluble in water
|
0.01% |
|
Granular(mm)
|
0.1-1, 1-3, 2-4
|
3, Uses: there are no toxic matter, thus it is widely used in drug, fertilizer, leather, printing, dyeing, pigment, ceramic, explosive, match, fireproof material, magnesium salt and feed additive.
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