Magnesium sulphate heptahydrate Ph. Eur., USP, BP
Supplier: VWR Chemicals
Synonyms:
sulphuric acid magnesium salt heptahydrate, Epsom salt, Bitter salt
6527.1000EA
51.6
GBP
6527.1000
6527.5000
6527.9025
Magnesium sulphate heptahydrate Ph. Eur., USP, BP
Magnesium sulphate heptahydrate
Appearance: White or almost white, crystalline powder or brilliant, colourless crystals.
Caution: Not for use as Active Pharmaceutical Ingredient (API)
Formula:
MgSO₄·7H₂O MW: 246,48 g/mol Melting Pt: 1124 °C Density: 2,66 g/cm³ (20 °C) Storage Temperature: Ambient |
MDL Number:
MFCD00149785 CAS Number: 10034-99-8 EINECS: 231-298-2 Merck Index: 13,05715 |
Specification Test Results
Appearance | Conforms (see CoA/CoS) |
Heavy metals (as Pb) | ≤ 10 ppm |
Residual solvents | Passes test |
Residual metal catalysts (skip lot): | . |
As (Arsenic) | ≤ 2 ppm |
Cd (Cadmium) | ≤ 0.1 ppm |
Co (Cobalt) | ≤ 1 ppm |
Hg (Mercury) | ≤ 2 ppm |
Ni (Nickel) | ≤ 6 ppm |
Pb (Lead) | ≤ 2 ppm |
V (Vanadium) | ≤ 10 ppm |
Conforms to Ph.Eur./USP/BP | Passes test |
Ph.Eur./BP specifications: | . |
Assay (dried substance) [Ph.Eur./BP] | 99.0 - 100.5 % |
Identification A | Passes test USP |
Identification B | Passes test USP |
Appearance of solution | Passes test Ph.Eur./BP |
Acidity or alkalinity | Passes test Ph.Eur./BP |
Cl (Chloride) [Ph.Eur./BP] | ≤ 300 ppm |
Fe (Iron) [Ph.Eur./BP] | ≤ 20 ppm |
Loss on drying (400°C) [Ph.Eur./BP] | 48.0 - 52.0 % |
USP specifications: | . |
Assay (by ignition) [USP] | 98.0 - 102.0 % |
Cl (Chloride) [USP] | ≤ 0.014 % |
Fe (Iron) [USP] | ≤ 20 μg/g |
Se (Selenium) [USP] | ≤ 30 μg/g |
pH (25°C; 50 mg/ml) [USP] | 5.0 - 9.2 |
Loss on ignition (450 ± 25°C) [USP] | 40.0 - 52.0 % |
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