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Ascorbic acid
Product Detailed
Ascorbic acid,
1,complied with FCCIV or USP30 standard
2, very competitive price.
Ascorbic acid USP30,
Specification:
TEST | Analysis standard | Result |
Description | White or almost white crystals or Crystalline Powder | Pass |
Identification | Positive Reaction | Positive |
Melting point | 190 – 192 | 191.00 |
PH | 2.1-2.6 | 2.40 |
Clarity of Solution | Clear | Clear |
Colour of solution | BY7max | BY7max |
Copper | 5 ppm max | 5ppm max |
Heavy metal | 10 ppm max | 5 ppm max |
Mercury | 1 ppm max | 1ppm max |
Lead | 2 ppm max | 2 ppm max |
Arsenic | 3 ppm max | 3 ppm max |
Oxalic Acid | 0.2% max | 0.12 |
Loss on drying | 0.4% max | 0.1 max |
Residue on ignition | 0.1% max | 0.1 max |
Specific Rotation | + 20.5 - + 21.5 | + 21.1 |
Organic volatile impurities | pass | pass |
Assay | 99.0 – 100.5% | 99.91% |
