Magnesium sulfate heptahydrate ≥99%, white crystalline powder for molecular biology
Supplier: MP BIOMEDICALS (FKA ICN BIOMED
Synonyms:
sulfuric acid magnesium salt heptahydrate
, Bitter salt
, sulphuric acid magnesium salt heptahydrate
, Epsom salt
Magnesium sulfate is a common pharmaceutical preparation of magnesium, commonly known as Epsom salts. Magnesium sulfate is the main preparation of intravenous magnesium.
Magnesium has a variety of biological roles in enzymology, cell membrane and wall structural integrity, muscle cell physiology, and nucleic acid structure. Magnesium is an essential co-factor in many enzymes, including deoxyribonuclease (DNase), the restriction enzymes EcoR I and EcoR V, and Ribonuclease H. Magnesium also stabilizes polymeric nucleic acids such as transfer RNA and ribozymes.
- Molecular Biology Reagent Grade
- Presentation: White Crystalline Powder
- Vapor Density: < 0.01 g/L (Lit.)
- Vapor Pressure: < 0.1 mm Hg at 20 °C (Lit.)
- Soluble in water (100 mg/mL).
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Formula:
MgSO₄·7H₂O MW: 246.48 g/mol Melting Pt: ∼150…200 °C (dec., lit.) Density: ∼1.68 g/cm³ (hydr.) Storage Temperature: Ambient |
MDL Number:
MFCD00149785 CAS Number: 10034-99-8 |
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Specification Test Results
| Identity Test | Passes |
| Purity | ≥99% |
| Ammonium | ≤0.002% |
| Calcium | ≤0.02% |
| Chloride | ≤5ppm |
| Heavy Metals | ≤5ppm |
| Insoluble Matter | ≤0.005% |
| Iron | ≤5ppm |
| Manganese | ≤5ppm |
| Nitrate | ≤0.002% |
| pH (5% aq soln, 25°C) | 5.0-8.2 |
| Potassium | ≤0.005% |
| Sodium | ≤0.005% |
| Strontium | ≤0.005% |
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