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Ascorbic Acid or Vitamin C Food Grade and Pharmaceutical Grade CAS 50-81-7 and Vitamin C DC 97
Product Name: Ascorbic Acid
Synonyms: Vitamin C, VC, Acidum ascorbicum
Other Form Types: Vitamin C DC 97, Vitamin C DC 90
CAS Number: 50-81-7
Characteristics:
(1) Ascorbic Acid (Vitamin C): A white or almost white crystalline powder or colorless crystals. Vitamin C will fade in color if exposed to air and moisture.
(2)Vitamin C DC90 and DC 97: White or semi-white granule.
Melting Point: about 190 °C. And it will melt with decomposition.
Assay: 99% Min
Grade Types: Ascorbic Acid (Vitamin C) Food Grade and Pharmaceutical Grade
Formula: C6H8O
Structure:
Package: 25Kg/Ctn, etc.
Usage: Ascorbic Aid (Vitamin C) exist in foods such as fruit, vegetables. It is an important nutrition for our health and immune system, blood vessels. Vitamin C contributes a lot to human’s absorption of Iron.
Vitamin C (Ascorbic Acid) deficiency will ended with bad skin, tiredness, tooth loss, and some joint pain problem. It is an effective anti-oxidant.
The prevailing preparation available are: Ascorbic Oral tablets, Multi-Vitamins, etc.
If you have kidney disease or kidney stones, please carefully use Ascorbic Aid (Vitamin C).
Typical COA for Ascorbic Aid (Vitamin C)
Name of Product |
Vitamin C (Ascorbic acid) |
|
Testing Item |
Standard |
Result |
Clarity of solution |
Clear |
Clear |
Colour of solution |
≤ BY7 |
pass |
Melting point |
About 190°C |
191.0°C |
Specific optical rotation |
+20.5° ~ +21.5° |
20.94° |
PH value |
2.1-2.8 |
2.34 |
Related Substance |
Impurity C≤0.15% Impurity D≤0.10% Any Other Unspecific Impurities ≤0.10% Total Impurities ≤0.20% |
Complies |
Oxalate |
≤ 0.2% |
< 0.2% |
|
Sulphate ash (residue on ignition) |
≤ 0.1% |
0.03% |
Iron |
≤ 2ppm |
< 2ppm |
Copper |
≤ 5ppm |
< 5ppm |
Heavy metals |
≤ 10ppm |
< 10ppm |
Assay |
99.0% ~ 100.5% |
99.63% |
Typical COA for Vitamin C DC90 and Vitamin C DC97
Name of Product |
Vitamin C DC90 and Vitamin C DC97 (Ascorbic Acid DC90 and DC97) |
|
Testing Item |
Standard |
Result |
Appearance |
White or semi-white granule. |
Complies |
Identification |
Should comply |
Complies |
Heavy Metal |
≤ 0.001% |
< 0.001% |
Arsenic (As) |
≤ 0.0002% |
< 0.0002% |
Lead (Pb) |
≤ 0.0002% |
< 0.0002% |
Loss on Drying |
≤ 0.70% |
0.38% |
Residue on Ignition |
≤ 0.10% |
0.02% |
Assay |
Vitamin C DC90 ≥ 90.0% Vitamin C DC97 ≥ 97.0% |
PASS |
