CASR |
: | 532-32-1 |
Molecular Formula |
: | C6H5COONa |
Molecular Weight |
: | 144.11 |
| Specifications | |
|---|---|
| Description: | A white, crystalline or granular powder or flakes; odourless or with a faint odour,hygroscopic. |
| Solubility: | Freely soluble in water. |
| Identification A (By Chemical test): | A white crystalline precipitate should produce |
| Identification (Reaction of sodium): | A dense white precipitate should form |
| Identification B (Reaction B for benzoates): | A white sublimate should deposit on the inner wall of the tube and no charring should occur |
| Identification B (Reaction C for benzoates): | After crystallization, melting point should be about 122°C. |
| Appearance of solution: | solution should be clear and not more intensely coloured than reference solution YS6. |
| Acidity or Alkalinity: | Not more than 0.2ml of 0.1M hydrochloric acid or 0.2ml of 0.1M sodium hydroxide should require to change the colour of the solution. |
| Arsenic (As): | NMT 2 ppm |
| Heavy metals: | NMT 10 ppm |
| Chlorinated compounds: | Any opalescence produced in the sample solution should not be more intense than obtained with standard solution |
| Loss on drying: | NMT 2.0% |
| Assay (on dried basis): | 99.0% - 100.5% |
