| ≥1 piece |
ascorbic acid (Vitamin C)
Product: Ascorbic Acid Batch No: 200901108
Packing:
Exp. Date: JAN. 2011 Standard: BP2005/USP30
Item
|
Standard
|
Testing Data
|
|
Characteristics |
White or almost Crystalline Power |
Pass |
|
Identification |
Positive Reaction |
Pass |
|
Melting Point |
|
|
|
PH |
2.1-2.6 |
2.40 |
|
Clarity of Solution |
Clear |
Clear |
|
Color of Solution |
≤BY7 |
BY7 |
|
Copper |
≤5ppm |
5ppm |
|
Heavy Metal |
≤10ppm |
5ppm |
|
Iron |
≤2ppm |
2ppm |
|
mercury |
≤1ppm |
1ppm |
|
Lead |
≤2ppm |
2ppm |
|
Arsenic |
≤3ppm |
3ppm |
|
Oxalate Acid |
≤0.2% |
0.2% |
|
Loss on drying |
≤0.4% |
0.4% |
|
Specific Rotation |
+20.5° +21.5° |
+21.2° |
|
Residue on ignition |
≤0.1% |
0.1% |
|
organic Volatile Impurities |
MEETS REQUIRMENT |
PASS |
|
Assay |
99.0 100.5% |
99.92% |
|
Result |
The above product complies with BP2005/USP30 STANDARD |
|