Ascorbic acid CAS 36431-82-0
Avobenzone CAS 70356-09-1
6 8 月, 2020Ammonium Magnesium Phosphate Hexahydrate CAS 13478-16-5
6 8 月, 2020
Ascorbic acid Typical Properties
| ITEM | STANDARD |
| Appearance | White Cryystalline 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 |
Ascorbic acid Packaging and Shipping
Packaging:25 kg/package , as customer’s request
Shipping:It can be according to the customer’s request
Ascorbic acid storage
Room temperature
Ascorbic acid Usage
Apply for medicine