1 | Description | Clear, colorless, syrupy liquid, having a sweet taste. Has not more than a slight characteristic odor, which is neither harsh nor disagreeable. Is hygroscopic. Its solutions are neutal to litmus. | Clear, colorless, syrupy liquid, having a sweet taste. Has not more than a slight characteristic odor, which is neither harsh nor disagreeable. Is hygroscopic. Its solutions are neutral to litmus. |
2 | Solubility | Passes | Miscible with water and with alcohol. Insoluble in chloroform, in ether, and in fixed and volatile oils. |
3 | Identification A (By IR) | Complies | IR spectra of the sample should be concomitant with IR spectra of the standard |
4 | Identification B (Diethylene glycol) | Not detected | NMT 0.10% |
5 | Identification B (Ethylene glycol) | Not detected | NMT 0.10% |
6 | Identification C (By GC Chromatogram) | Complies | The retention time of the glycerin peak of the sample solution corresponds to that obtained in the standard solution |
7 | Assay (Anhydrous basis) | 99.72% | 99.0% - 101.0% |
8 | Chloride (Cl) | Less than 10ppm | NMT 10ppm |
9 | Sulphate (SO4) | Less than 20ppm | NMT 20ppm |
10 | Residue on ignition | 0.002% | 0.01% max |
11 | Related compounds : Individual impurity | 0.08% | NMT 0.1% |
12 | Related compounds : Total impurities | 0.24% | NMT 1.0% |
13 | Chlorinated compounds | Less than 30ppm | NMT 30ppm of Cl |
14 | Fatty acids and esters | Complies | NMT 1.0ml of 0.5N sodium hydroxide shall consume. |
15 | Color | Complies | Color of the sample should not be darker than the color of the standard . |
16 | Specific gravity, 25°C | 1.255 | NLT 1.249 |
17 | Water | 0.073% | NMT 5.0% |