| Customization: | Available |
|---|---|
| CAS No.: | 299-29-6 |
| Formula: | C12h22feo14 |
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Specification of Ferrous Gluconate
| Item | Limit |
| Characters | Appearance: This product should be a grayish green or slightly yellow powder or granule with a caramel odor |
| Solubility: This product is soluble in hot water, soluble in water, and almost insoluble in ethanol | |
| Identification | Precipitation reaction: should be a positive reaction |
| Under the determination of gluconate content, the retention time of the main peak should be consistent with that of the reference solution. | |
| pH | 4.0~5.5 |
| Clarity and color of solution | The solution should be clear and microscopically green brown in color |
| Chloride | Not more than 0.06% |
| Sulfate | Not more than 0.05% |
| Related substance | Formic acid: not more than 0.1% |
| Acetic acid: not more than 0.1% | |
| Glucuronic acid:not more than 0.1% | |
| 5-hydroxymethylfurfural: not more than 0.01% | |
| Other individual impurities: not more than 0.10% | |
| Total impurities:not more than 0.5% | |
| Residual solvent | Not more than 0.5% |
| Gluconate radical | 76.0%~86.0% |
| Barium | Both liquids should be equally clear |
| Calcium | Meets the requirements(0.05) |
| Oxalate | Turbidity must not occur within 30 minutes |
| Sucrose and reducing sugar | No red sediment shall be generated |
| Ferric salt | Not more than 1.0% |
| Loss on drying | 7.0%~10.5% |
| Heavy metals | Should not exceed 20 parts per million |
| Arsenic | Meets the requirements (0.0002%) |
| Microbial Limit | The total number of aerobic bacteria should not exceed 103 cfu/g |
| The total number of mold and yeast should not exceed 102cfu/g | |
| Escherichia coli should not be detected | |
| Assay | 97.0%~102.0% |
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