| CAS No.: | 50-81-7 |
|---|---|
| Other Names: | Ascorbic Acid |
| MF: | C6H8O6 |
| EINECS No.: | 200-066-2 |
| Place of Origin: | China (Mainland) |
| Grade Standard: | Medicine Grade |
| Usage: | |
| Brand Name: | HJFD |
| Model Number: | |
| Purity: | 99% |
Quick Details
Specifications
Description
1) Specification: 99%, BP, USP
2) CAS No.: 50-81-7
3) Molecular Weight:
4) Function:Vitamin C or Ascorbic acidis an esssential nutrient for humans and certain other animal species.Ascorbic acid is well known for its anti-oxidant activity.Besides, Ascorbic acid has been shown to reduce transition metals.
Certificate of Analysis
|
Test items |
Specifications |
Test results |
|
Characteristics |
White or almost white crystalline powder |
Complies |
|
Identification |
Positive reaction |
Positive |
|
Melting Point |
About 190°C |
191°C |
|
pH |
2.1 ~ 2.6 |
2.3 |
|
Clarity of Solution |
Clear |
Clear |
|
Colour of Solution |
≤ BY7 |
<BY7 |
|
Copper |
≤ 5ppm |
<5ppm |
|
Heavy Metals |
≤ 10ppm |
<10ppm |
|
Lead |
≤ 2ppm |
<2ppm |
|
Iron |
≤ 2ppm |
<2ppm |
|
Oxalic Acid |
≤ 0.2% |
<0.2% |
|
Residue on Ignition |
≤ 0.1% |
0.05% |
|
Specific Optical Rotation |
+20.5° ~ +21.5° |
+21.1° |
|
Assay |
99.0% ~ 100.5% |
99.9% |
|
Organic Volatile Impurities |
Meets the requirement. |
Complies |
|
Residual Solvents |
Methanol ≤ 3000ppm |
<3000ppm |
|
Conclusion |
Conform to BP2007/USP30 Standard. |
|
|
Storage |
Store in sealed containers at cool & dry place. Protect from light, moisture and pest infestation. |
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