| Customization: | Available |
|---|---|
| CAS No.: | 50-81-7 |
| Formula: | C6h8o6 |
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1. Preservation of fruits and vegetables: The rapid aging of fruits after picking is closely related to the production of a large amount of reactive oxygen species from the post-harvest metabolism of the pulp. If the reactive oxygen species in the cells cannot be removed by the antioxidant system in time, it will lead to oxidative stress. Vitamin C is an important antioxidant substance in plants. Some studies have shown that if the vitamin C content of fruits and vegetables is increased during postharvest storage, the postharvest preservation effect of fruits and vegetables can be improved.
2. As an SO2 supplement: SO2 is usually added to wine as a protective agent. It is not only a fungicide, which can effectively kill the bacteria in grapes, but also an antioxidant, which protects the natural fruit characteristics of the wine. At the same time, prevent wine aging| Items | Specifications |
| Appearance | White crystalline powder |
| Identification | Positive |
| Clarity of solution | Clear |
| Assay (%) | 99.0~100.5 |
| Loss on drying (%) | ≤0.40 |
| Residue on ignition (%) | ≤0.10 |
| Sulphate ash (%) | ≤0.10 |
| Specific rotation ( °) | +20.5~+21.5 |
| PH value (2% solution) | 2.4 ~2.8 |
| PH value (5% solution) | 2.1 ~ 2.6 |
| Melting range (ºC) | About 190 |
| Heavy metals (ppm) | ≤3 |
| Iron (ppm) | ≤2 |
| Copper (ppm) | ≤2 |
| Total plate count (cfu/g) | ≤1000 |
| Arsenic (ppm) | ≤1 |
| Lead (ppm) | ≤2 |
| Cadmium (ppm) | ≤1 |
| Mercury (ppm) | ≤1 |
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