Items | Standard |
Appearance | white crystalline Powder |
Assay | ≥99% |
Melting point for benzoic acid | 121.5-123.5℃ |
Moisture | 1.5%max |
Acidity & alkalinity | ≤0.2ml |
Policyclic acid | Passed |
Chlorinated organic compounds: | ≤0.06% |
Sulphates | 0.1%max |
Chloride | 0.02%max |
Colour of solution | Y6 |
As | 2PPM MAX |
Hg | 1PPM MAX |
Pb | 2PPM MAX |
Water solution test | Clear |
Readily oxidisable substances (KMnO4) | 0.5ml/g MAX |
Phthalic acid | Conforms |