1 | Description | White crystalline powder. | White or almost white, crystalline powder, or lustrous, colourless or white or almost white crystals |
2 | Solubility | Passes | Very soluble in water, slightly soluble in ethanol (96 per cent), practically insoluble in anhydrous ethanol |
3 | Specific rotation (a) 20 °C (10% aqueous solution) | +66.57° | +66.3° to +67.0° |
4 | Identification (By chemical test) | Passes | orange precipitate should form |
5 | Identification (By IR) | Passes | IR spectra of the sample should be concomitant with IR spectra of standard |
6 | Appearance of solution | Passes | The clarity of the sample solution should the same as that of water or its opalescence should not more pronounced than that of reference suspension 1 |
7 | Color of solution | Passes | Any colour produced should not more intense than that of reference solution Y4 |
8 | Color number | Less than 45 | NMT 45 |
9 | Conductivity | Less than 35 µS/cm | NMT 35 µS/cm at 20°C |
10 | Sulphite (SO3) | Less than 10ppm | NMT 10ppm |
11 | Sulfate | Less than 0.05% | NMT 0.05% |
12 | Heavy metals | Less than 0.0005% | NMT 0.0005% |
13 | Calcium | Less than 0.05% | NMT 0.05% |
14 | Dextrins | Passes | The solution remains yellow |
15 | Reducing sugars | Passes | The blue color does not disappear completely, ignoring any blue color at the air/solution interface. |
16 | Loss on drying at 105°C | 0.02% | NMT 0.1% |
17 | Sulfated ash | Less than 0.1% | NMT 0.1% |
18 | Bacterial endotoxins | Less than 0.25 IU/mg | Not less than 0.25 IU/mg |