| Description |
Small, colourless crystals, usually needles-like, with a cooling, saline, bitter test
|
Solubility |
Very soluble in boiling water, freely soluble in water, freely (and slowly) soluble in glycerin; sparingly soluble in alcohol
|
| Identification |
-
|
Identification 'A' |
Sulfate - Meets the requirements
|
| Identification 'B' |
By Assay -The retention time of the major peak of the Sample solution should corresponds to that of the Standard solution, as obtained in the Assay
|
Assay (As MgSO4) |
98.0%–102.0% (on the previously ignited basis)
|
| Chloride and sulfate (Chloride) |
NMT 0.014%
|
Iron |
NMT 0.5 µg/g
|
| pH |
5.0-9.2
|
Loss on ignition |
40.0 to 52.0% (For Heptahydrate)
|