Magnesium sulphate heptahydrate USP, Ph. Eur., BP
: sulphuric acid magnesium salt heptahydrate, Epsom salt, Bitter salt
:10034-99-8
:
:MgSO₄·7H₂O
:MFCD00149785
:2.66 g/cm³ (20 °C)
:246.48 g/mol
:1124 °C
:13,05715
:Ambient
:231-298-2
- Environmentally Preferable:
- 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
- Li:Max. 0.5 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 Ph.Eur./BP
- Identification B:Passes test Ph.Eur./BP
- 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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