Magnesium Sulfate USP
| Product Name: | Magnesium Sulfate USP |
| Product Formula: | MgSO4.7H2O |
| Molecular Weight: | 246.48 |
| CAS Number: | 10034-99-8 |
| No. | Tests | Specifications | Reference |
|---|---|---|---|
| 1 | Description | Small, Colorless crystals, usually needle like, with a cooling, saline, bitter taste | USP |
| 2 | Solubility | Freely soluble in water, freely (and slowly) soluble in glycerin, very soluble in boiling water, sparingly soluble in alcohol | USP |
| 3 | Identification: A. Tests for Magnesium B. Tests for Sulfate |
Shall pass the test Shall pass the test |
USP |
| 4 | pH | Between 5.0 and 9.2 | USP |
| 5 | Loss on ignition | Between 40.0 % and 52.0 % | USP |
| 6 | Chloride | Not more than 0.014 % | USP |
| 7 | Iron | Not more than 0.5 µg per g | USP |
| 8 | Heavy metals | Not more than 0.001 % | USP |
| 9 | Selenium | Not more than 0.003 % | USP |
| 10 | Assay as MgSO4 | 99.0 % to 100.5 % | USP |
Storage: Store in a well-closed container at a temperature not exceeding 25°C, protected from direct sunlight and Moisture, unless otherwise specified.
Retest Period: 3 years from the date of manufacture.
