Erythorbic Acid or erythorbate, formerly known as isoAscorbic Acid and D-araboascorbic acid, is a stereoisomer of ascorbic acid.
And its chemical properties have many similarities with Vc, but as an antioxidant, it has the inimitable advantage that Vc does not have: First, it is superior to the anti-oxidation than Vc, therefore, mixed the Vc, it can effectively protect the properties Vc component in improving the properties have very good results, while protecting the Vc color. Second, higher security, no residue in the human body, participating in metabolism after absorbing by the human body, which can be transformed into Vc partially. In recent years, Chinese medicine takes it as complementary information be used in Vc film, Vc Yinqiao-Vc, and health care products, and obtain the good effect.
| Item | Specification — FCC IV |
| Name | Erythorbic Acid |
| Appearance | White odorless, crystaler or granules |
| Assay(on dry basis) | 99.0 – 100.5% |
| Chemical Formula | C6H8O6 |
| Specific rotation | -16.5 — -18.0 º |
| Residue on ignitionc | < 0.3% |
| Loss on drying | < 0.4% |
| Particle size | 40 mesh |
| Heavy metal | < 10 ppm max |
| Lead | < 5 ppm |
| Arsenic | < 3 ppm |
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