| ≥1 piece |
3. CAS NO.: 4468-02-4 Dihydrate
4. H.S. CODE: 29181600
Occurs as a white or nearly white, granular or crystalline powder and as a mixture of various states of hydration, up to the trihydrate, depending on the method of isolation. It is freely soluble in water and very slightly soluble in alcohol.
USP/FCC/GBgrade
ITEM |
FCC(IV) |
GB8820-1988 |
USP29 |
Specification |
Specification |
Specification |
|
|
Assay(dry) |
97.0~102.0% |
97.0~102.0% |
97.0~102.0% |
|
Cadmium |
≤5ppm |
≤5ppm |
≤5ppm |
|
Chloride |
≤0.05%. |
≤0.05%. |
≤0.05%. |
|
Lead |
≤0.001% |
≤0.001% |
≤0.001% |
|
Reducing Substances |
≤1.0% |
≤1.0% |
≤1.0% |
|
Sulfate |
≤0.05% |
≤0.05% |
≤0.05% |
|
Water |
≤11.6% |
≤11.6% |
≤11.6% |
|
PH |
---- |
5.5-7.5 |
5.5-7.5 |
|
Arsenic |
---- |
≤3ppm |
≤3ppm |
|
Residual solvents |
---- |
---- |
Meet the requirements |
|
Organicvolatileimpurities |
---- |
---- |
Meet the requirements |
Preserve in well-closed container, store in cool, dry place.25 kg /