- Min.Order :1 Kilogram
- Purity: 99%
- Payment Terms : L/C,T/T
Keywords
Vitamine C L(+)-Ascorbic acid CAS:50-81-7
Quick Details
- Appearance:White powder
- Application:nutritional element in additives,feed additives.
- PackAge:25kg/drum
- ProductionCapacity:2000|Metric Ton|Year
- Storage:Store in cool and dry place, away from sun light.
- Transportation:By sea or by air
Superiority:
Name: Vitamine C
Synonyms: L(+)-Ascorbic acid
CAS:50-81-7
MF: C6H8O6
Details:
|
Item |
Standard |
|
Appearance |
White or almost white, crystalline powder or colourless crystals |
|
Melting point |
About 190℃. with decomposition |
|
Infrared absorption spectrum |
Infrared absorption spectrum accord with the referance spectrum of ascorbic acid CRS |
|
PH(With 5% water solution) |
2.1-2.6 |
|
PH(With 2% water solution) |
2.4-2.8 |
|
Appearance of solution |
Clarity; clear; colour: ≤BY7 |
|
Specific optical rotation |
20.5℃- 21.5℃ |
|
Loss on drying |
≤0.4% |
|
Impurity E |
≤0.2% |
|
Related substance |
Impurity C: ≤0.15% |
|
Impurity D: ≤0.15% |
|
|
Unpecified impurities:≤0.10% |
|
|
Total impurities:≤0.20% |
|
|
Copper |
≤5.0ppm |
|
Iron |
≤2.0ppm |
|
Arisenic |
≤3.0ppm |
|
Lead |
≤2.0ppm |
|
Mercury |
≤1.0ppm |
|
Cadmium |
≤1.0ppm |
|
Heavy metals |
≤10ppm |
|
Sulphated ash |
≤0.1% |
|
Assay |
99.0% ~ 100.5% |
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