ASCORBIC ACID (Vitamin C)
Molecule Formula: C6H8O6 Molecule Weight: 176.1241
CAS No.: 50-81-7
Main Features
Vitamin C is a white monoclinic crystal or crystalline powder with melting point on 190 ºC -192 ºC, no smell, sour, yellowish color after long time standing. The product is easily soluble in water, slightly soluble in ethanol, insoluble in ether, chloroform. The aqueous solution is acidic. 5% (W / V) aqueous solution PH2.1-2.6 (W / V), the rotation of aqueous solution is +20.5 ° ~ +21.5.
Specification: BP2011/USP33/EP 7/FCC7/CP2010
| Item |
Standard |
| Assay |
99.0%-100.5% |
| Melting point |
about 190ºC |
| PH value |
2.1-2.6 |
| Clarity of solution |
Clear |
| Color of solution |
BY7 Max. |
| Copper |
5ppm Max. |
| Heavy metals |
10ppm Max. |
| Mercury |
1mg/kg Max. |
| Lead |
2mg/kg Max. |
| Arsenic |
3ppm Max. |
| Iron |
2ppm Max. |
Packaging
The inner packaging is double plastic bags, vacuum sealed package with nitrogen; the outer package is corrugated box / cardboard drum.
Packed in 25kg/carton box, or 25kg/drum
Storage conditions
Shade, under seal, dry, ventilation, pollution-free, not in the open air, under 30 ºC, relative humidity ≤ 75%. Can not be stored with toxic, corrosive, volatile or stink items.
Transportation
Handle with care in transportation, sun and rain prevention, cannot be mixed, transported and stored with toxic, corrosive, volatile or stink items.
Audited Supplier 
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