Products - APIs and Intermediates

Ascorbic Acid BP2005 USP30

CERTIFICATE OF ANALYSIS
Product Name: ASCORBIC ACID BP2005/USP30
NO. Analysis Contents Analysis Standard Analysis Result
1 Description White or almost white crystals or crystalline powder Pass
2 Identification Positive Reaction Positive
3 Melting Point 187oC - 192oC 191.3oC
4 Assay 99.0 - 100.5% 99.6%
5 Loss on drying ≤0.4% 0.4%
6 pH 2.1～2.6 2.42
7 Clarity of Solution Clear Clear
8 Colour of Solution ≤BY7 BY7
9 Copper ≤5ppm 3ppm
10 Heavy Metals ≤10ppm 5ppm
11 Iron ≤2ppm 2ppm
12 Mercury ≤1ppm 1ppm
13 Lead ≤2ppm 2ppm
14 Arsenic ≤3ppm 3ppm
15 Oxallc Acid ≤0.2% 0.1%
16 Residue on ignition ≤0.1% 0.1%
17 Organic Volatile Impurities Pass Pass
18 Specific Rotation +20.5o - +21.5o +21.4o
Conclusion : The Above-Mentloned Product Comforms To BP2004/USP28