| Model: | USP27 |
|---|---|
| Brand: | xinglian |
| Origin: | Made In China |
| Category: | Agriculture & Foods / Processed Food / Other Processed Food |
| Label: | extract , foodaddiitive , nutritio supplements |
| Price: |
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| Min. Order: | 1 pc |
| Live Chat: | Last Online:14 Oct, 2010 |
C12H22O14Zn
455.68 Anhydrous 491.71 Dihydrate CAS No.: 4468-02-4 Dihydrate
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
| Items | 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 / paper plastic complex bag ，or according to order。
