| Test Item |
Specification |
| Appearance |
White crystals or
a white crystalline powder |
| Identification |
Complies with BP/USP |
| Melting point |
226-2300 C |
| Acidity or alkalinity |
4.5-5.5ml |
| Clarity and colour of solution |
Colour is clear |
| Heavy Metals |
10 ppm max |
| O-and p-toluene sulfonamide |
10 ppm of each |
| Water |
15% max |
| Assay |
99-101% |
| Solubility |
a solution made of 50% ethanol/water
with of a concentration of 1.5% of sodium
saccharin has to be clear/transparent in |
| Organic volatile impurities |
Complies with USP |
| Benzoate and salicylate |
Complies with USP |
| Arsenic |
2ppm max |
| Selenium |
0.003% max |
| Readily carbonisable substanles |
Not more intensely
Coloured than reference B6 |
