Pharmacopoeia Grades
Magnesium Sulphate Monohydrate: United States Pharmacopoeia (USP)
CAS Number: 14168-73-1
Molecular Weight: 138.386 g/mol
Molecular Formula: MgSO4.7H2O
| Test | Specifications |
|---|---|
| Assay | 98.0%–102.0% |
| Chloride and Sulphates | 0.014% |
| Iron (Fe) | Not more than 0.5 ppm |
| Selenium | Not more than 30 ppm |
| pH | 5.0–9.2 |
| Loss on Drying | Not more than 2% |
| Loss on Ignition | 40.0%–52.0% |
Magnesium Sulphate Heptahydrate: United States Pharmacopoeia (USP)
CAS Number: 10034-99-8
Molecular Weight: 246.47 g/mol
Molecular Formula: MgSO4.7H2O
Molecular Weight: 246.47 g/mol
Molecular Formula: MgSO4.7H2O
| Test | Specifications |
|---|---|
| Assay | 98.0%–102.0% |
| Chloride and Sulphates | 0.014% |
| Iron (Fe) | Not more than 0.5 ppm |
| Selenium | Not more than 30 ppm |
| pH | 5.0–9.2 |
| Loss on Drying | Not more than 2% |
| Loss on Ignition | 40.0%–52.0% |
Magnesium Sulphate Heptahydrate: European Pharmacopoeia (EP)
CAS Number: 10034-99-8
Molecular Weight: 246.47 g/mol
Molecular Formula: MgSO4.7H2O
| Test | Specifications |
|---|---|
| Assay | 99.0% to 100.5% |
| Appearance | White or almost white, crystalline powder or brilliant, colourless crystals |
| Solubility | 96% |
| Chloride (Cl) | 300 ppm max |
| Iron (Fe) | 20 ppm max |
| Loss on Drying | 48.0% to 52.0% |
Magnesium Sulphate Heptahydrate: British Pharmacopoeia (BP)
CAS Number: 10034-99-8
Molecular Weight: 246.47 g/mol
Molecular Formula: MgSO4.7H2O
| Test | Specifications |
|---|---|
| Assay | 99.0% to 100.5% |
| Appearance | White or almost white, crystalline powder or brilliant, colourless crystals |
| Solubility | Freely soluble in water |
| Chloride (Cl) | Not more than 300 ppm |
| Iron (Fe) | Not more than 20 ppm |
| Loss on Drying | 48.0% to 52.0% |