| Powder: | Yes |
|---|---|
| Certification: | GMP, HSE, ISO 9001, USP, BP |
| Suitable for: | Elderly, Children, Adult |
| State: | Solid |
| Purity: | >99% |
| Purity Degree: | 99% |
| Customization: |
|---|
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| Items |
Standard |
Result |
| Appearance | Small colourless crystals or shiny flakes or white crystalline powder | Conforms |
| Heavy metal | ≤0.002% | <0.002% |
| Water | ≤0.5 | 0.19% |
| Sulfite or thiosulfate | ≤0.15ml | <0.15ml |
| Assay | 99.5%100.5% | 99.7% |
| Conclusion | The sample meets the specification of USP32 | |
|
Items |
Standard |
Result |
|
Appearance |
White to off-white powder |
White powder |
|
Assay (W/W dry basis) |
≥98.0% |
99.16 % |
|
Residue on ignition |
<0.5% |
0.256% |
|
Water (w/w by KF) |
≤1.0% |
0.420% |
|
pH Value(1% aq.) |
5~9 |
7.28 |
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