CASR |
: | 10034-99-8 |
Molecular Formula |
: | MgSO4.7H2O |
Molecular Weight |
: | 246.48 |
| Specifications | |
|---|---|
| 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 |
