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Magnesium Sulphate Heptahydrate, LR, ≥98% |
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Synonym Name |
Bitter salt, Epsom salt, sulfuric acid magnesium salt heptahydrate. |
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Solubility |
Miscible in water |
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Density |
1.68 g/cm3 at 20°C |
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Melting Point |
770°C |
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Purity |
≥98% |
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Refractive Index |
1.433 nD |
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Appearance |
White crystalline solid |
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Storage |
Store in a cool and dry place |
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Magnesium Sulfate Heptahydrate 99% Extra Pure |
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Description |
White crystalline powder |
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Assay |
99.0 - 100.5% |
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pH (5% water) |
5.0 - 9.2 |
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Water insoluble matter |
Max. 0.025% |
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Free Alkali (as NaOH) |
Max. 0.008% |
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Solubility in water |
246.48 g/l @ 20°C - completely soluble |
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Free acid (as H2SO4) |
Max. 0.01% |
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Chloride (Cl) |
Max. 0.014% |
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Phosphate (PO4) |
Max. 0.002% |
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Ammonium (NH4) |
Max. 0.005% |
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Heavy metals (as Pb) |
Max. 0.001% |
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Arsenic (As) |
Max. 0.0002% |
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Iron (Fe) |
Max. 0.001% |
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Selenium |
Max. 0.001% |
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Loss on ignition (450°C) |
48.0-52.0% |
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HSN Code |
28332100 |
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Magnesium Sulfate Heptahydrate 99.5% AR |
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Description |
Colourless crystals |
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Assay |
99.5 – 102% |
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Water insoluble matter |
Max. 0.005% |
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pH (5% water) |
5.0 - 7.0 |
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Solubility in water |
246.48 g/l @ 20°C - completely soluble |
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Nitrate (NO3) |
Max. 0.002% |
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Ammonium (NH4) |
Max. 0.002% |
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Chloride (Cl) |
Max. 0.0005% |
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Calcium (Ca) |
Max. 0.02% |
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Heavy metals (as Pb) |
Max. 0.0005% |
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Iron (Fe) |
Max. 0.0005% |
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Potassium (K) |
Max. 0.005% |
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Manganese (Mn) |
Max. 0.0005% |
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Sodium (Na) |
Max. 0.005% |
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Strontium (Sr) |
Max. 0.005% |
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HSN Code |
28332100 |
