| Parameter | Specifications |
| Assay | 99.00 to 100.50 |
| Heavy Metals | Not more than 20 ppm |
| Chloride | Not more than 100 ppm |
| Sulphated Ash | 0.00 to 0.10 |
| Solubility | Slightly soluble in water, freely soluble in ethanol 96% and sparaingly soluble in methylene chloride |
| Sulphate | Not more than 200 |
| Loss on drying | 0.000 to 0.500 |
| SA-Impurity A (4-hydroxy benzoic acid) | Not more than 0.1% |
| SA-Impurity B (4-hydroxy ispphthalic acid) | Not more than 0.05% |
| SA-Impurity C (Phenol) | Not more than 0.02% |
| SA-Secondary Peak (if any) | Not more than 0.05% |
| SA-Sum of all secondary peaks | Not more than 0.2% |
| Appearance of solution | The solution is clear and colourless |
| Appearance | A white or almost white, srytalline powder or white or colourless. acicular crystals |
| Identification as per BP-A | Melting point: 158°C to 161°C |
Shelf Life: 5 years
Storage: Store in cool place. Keep container tightly closed in a dry and well-ventilated place. Light sensitive.
Usage and application of Salicylic Acid: