| Magnesium sulfate description |
Magnesium sulfate is a chemical compound containing magnesium and sulfate.
It is often encountered as the heptahydrate, MgSO4·7H2O. Also we have MgSO4, MgSO4.H2O, MgSO4.2H2O, MgSO4.3H2O, MgSO4.5H2O
Specifications of Magnesium Sulfate |
Grade
Project | MgSO47H2O
| MgSO45H2O
| MgSO43H2O
| MgSO42H2O
| MgSO4H2O
| MgSO4 |
Exterior | White crystalline | White powder or crystalline | White powder or crystalline | White powder or crystalline | White powder or crystalline | White powder or crystalline |
Main content ≥ % | 99.5 | 99 | 99 | 99 | 99 | 98 |
MgSO4≥ % | 48.59 | 56 | 68 | 76 | 86 | 98 |
MgO≥ % | 16.20 | 19.00 | 22.70 | 25.30 | 28.60 | 32.60 |
Mg≥ % | 9.80 | 11.31 | 13.65 | 15.23 | 17.21 | 19.6 |
PH value (5% aqueous solution) | 5.0-9.2 | 5.0-9.2 | 5.0-9.2 | 5.0-9.2 | 5.0-9.2 | 5.0-9.2 |
(Fe ) ≤ % | 0.0015 | 0.0015 | 0.0015 | 0.0015 | 0.0015 | 0.0015 |
(Cl) ≤ % | 0.0014 | 0.0014 | 0.0014 | 0.0014 | 0.0014 | 0.0014 |
(Pb) ≤ % | 0.001 | 0.001 | 0.001 | 0.001 | 0.001 | 0.001 |
(As) ≤ % | 0.0002 | 0.0002 | 0.0002 | 0.0002 | 0.0002 | 0.0002 |
| Usage of magnesium sulfate |
1.In agriculture, magnesium sulfate is used for fertilizer, because magnesium is one of the major components of chlorophyll. It is often used in potted plants or magnesium deficiency of crops, such as tomatoes, potatoes, roses, etc.
