|
SODIUM BENZOATE |
CHARACTERISTICS |
ANALYSIS |
| Description | White, Crystalline or Granular Powder or Flakes. |
| Solubility | Freely Soluble in Water & Sparingly in Ethanol (90%). |
| Identification | a)
Gives Reaction of
Sodium.
b) Gives Buff Coloured Precipitate with FeCl3. c) Sublimes on Heating with H2SO4. d) Melting Point of Precipitate with HCl is 1200- 1240C. |
| Acidity & Alkalinity | Not more than 0.2 ml of 0.1 N NaOH or Not more than 0.2 ml of 0.1 N HCl |
| Colour & Clarity | 10% w/v Solution in Carbon- Dioxide Free Water is Clear & Colourless. |
| Heavy Metals (ppm) | 10 (Max.) |
| Halogenated
Compounds
i) Ionic Chloride (ppm) ii) Total Chlorine (ppm) |
200 (Max.) 300 (Max.) |
| Loss on Drying at 1050C (%) | 2.0 (Max.) |
| Assay on Dry Basis (%) | Not less than 99.0% & Not more than 100.5% on dry basis. |