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Magnesium Sulphate Heptahydrate
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| Grade | C | B | A |
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Purity
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≥95%
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≥98%
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≥99.5%
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MgSO4
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≥46.39%
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≥47.85%
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≥48.59%
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MgO
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≥15.53%
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≥16.02%
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≥16.27%
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Mg
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≥9.37%
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≥9.66%
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≥9.81%
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S
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≥12.36%
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≥12.75%
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≥12.94%
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Cl
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≤0.1%
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≤0.1%
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≤0.1%
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Fe
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0.0001%
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0.0001%
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0.0001%
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As
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—
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2ppm max
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2ppm max
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Cd
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—
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2ppm max
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2ppm max
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Pb
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0.0008%
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0.0008%
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0.0008% |
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Insoluble in water
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≤0.10%
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≤0.010%
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≤0.010%
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PH(5W/V%Sol)
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4.5-6.5
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4.5-6.5 |
6.8
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Size
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0.1-1mm
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0.1-0.5/ 1-3/ 2-4/ 4-7mm
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0.1-1mm
1-3mm
2-4mm
4-6mm
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Appearance
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White crystal
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Product Details:
Magnesium sulfate, or anhydrous magnesium sulfate and magnesium sulfate heptahydrate, is a magnesium-containing compound having a molecular formula of MgSO4 (or MgSO4·7H2O). Anhydrous magnesium sulfate is a commonly used chemical reagent and drying reagent.
However, magnesium sulfate is often referred to as magnesium sulfate heptahydrate because it is not easily soluble and is easier to weigh than anhydrous magnesium sulfate, facilitating quantitative control in the industry.
Efficacy :
(1)Fully water-soluble
(2)Consists of 100% plant nutrients
(3)Efficient Mg and S nutrients for the light soil and acid soils, especially for the calcareous soils and soils with a high pH, which high calcium concentrations in the soil solution impede the magnesium availability.
(4)Granular fertilizer has excellent spreading properties due to the well-defined granulometry and the hardness of the granules. These qualities also make it equally well suited for bulk blending.
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