Sodium Ascorbate is white or light yellow crystalline solid, lg of the product can be dissolved in 2 ml water. Not soluble in benzene, ether chloroform, insoluble in ethanol, relatively stable in dry air, moisture absorption and water solution after the oxidation and decomposition will slow, especially in neutral or alkaline solution is oxidized very quickly.
Sodium Ascorbate is important nutrition fortifier, antioxidant preservative in food industry ;which can keep food color, natural flavor, extend shelf life. Mainly used for meat products, dairy products, beverages, canned and so on.
| ITEM | STANDARD |
| Appearance | White to slightly yellow cr ystalline powder |
| Identification | Positive |
| Assay (as C 6H 7NaO 6) | 99.0 ‐ 101.0% |
| Specific optical rotation | +103° ‐ +106° |
| Clarity of solution | Clear |
| pH (10%, W/V ) | 7.0 ‐ 8.0 |
| Loss on drying | ≤ 0.25% |
| Sulphate (mg/kg) | ≤ 150 |
| Total heavy metals | ≤ 0.001% |
| Lead | ≤ 0.0002% |
| Arsenic | ≤ 0.0003% |
| Mercury | ≤ 0.0001% |
| Zinc | ≤ 0.0025% |
| Copper | ≤ 0.0005% |
| Residual Solvents (as Menthanol) | ≤ 0.3% |
| Total plate count (cfu/g) | ≤ 1000 |
| Yeasts & molds (cuf/g) | ≤ 100 |
| E.coli/ g | Negative |
| Salmonella/ 25g | Negative |
| Staphylococcus aureus/ 25g | Negative |
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