| ITEMS | SPECIFICATIONS |
| Characters | A white ,crystalline powder or white or colorless acicular crystals ,slight soluble in water ,freely soluble in ethanol (96%),sparingly soluble in methylene chloride |
| Identification A | Melting point 158ºC to 161ºC |
| Identification B | The IR spectrum of sample complies with salicylic acid CRS |
| Appearance of solution | Solution is clear and colourless |
| Chloride | ≤100ppm |
| Sulfate | ≤200ppm |
| Heavy metals | ≤20ppm |
| Loss on drying | ≤0.5% |
| Sulphated ash | ≤0.1 |
| Assay(dry substance) | 99.0% - 100.5% |
| Conclusion | The product comply with the requirements of BP2010 |