Magnesium sulfate heptahydrate Cell culture 250GM Go Back


: 10034-99-8

Molecular Formula

: MgSO4.7H2O

Molecular Weight

: 246.48
Description: White or almost white, crystalline powder, colourless crystals.
Solubility: Freely soluble in water, very soluble in boiling water, practically insoluble in ethanol (96 per cent).
Assay: 99.0% - 100.5%
Identification (Sulfate): A white precipitate should form.
Identification (Magnesium): A white crystalline precipitate should form
Appearance of solution: The solution should be clear and colourless
pH of a 5% solution at 25.0°c: 5.0-8.2
Acidity or Alkalinity: NMT 0.2 mL of 0.01 M hydrochloric acid or 0.01 M sodium hydroxide is required to change the colour of the indicator.
chloride: NMT 0.014%
Heavy metals (as Pb): NMT 0.0005%
Arsenic (As): NMT 0.0002%
Calcium (Ca): NMT 0.01%
Iron (Fe): NMT 0.0010%
Selenium (Se): NMT 0.001%
Zinc (Zn): No turbidity should form
Loss on drying: 49.0% - 52.0%
Total aerobic microbial count: NMT 100CFU/gm
Total Yeast and mold count: NMT 100CFU/gm
Escherichia coli: should be absent/gm
Pseudomonas aeruginosa: should be absent/gm
Staphylococcus aureus: should be absent/gm
Salmonella: should be absent/10 gm
Candida albicans: should be absent/gm
Bacterial endotoxins: NMT 1.0 IU/gm
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