1 | Description | A clear, colourless, viscous liquid; practically odourless; hygroscopic. | A clear, colourless, viscous liquid; practically odourless; hygroscopic. |
2 | Solubility | Complies | Miscible with water, with ethanol (95%) with acetone and with chloroform. |
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 0.1% |
5 | Identification B (Ethylene glycol) | Not detected | NMT 0.1% |
6 | Identification C (By GC Chromatogram) | Complies | The retention time of the propylene glycol peak of the sample solution corresponds to that of the standard solution |
7 | Acidity | Complies | Not more than 0.2mL of 0.1 M sodium hydroxide should require to change the colour of the indicator to original pink. |
8 | Relative density, 25°C | 1.036 | 1.035 - 1.037 |
9 | Diethylene glycol | Not detected | NMT 0.1 % |
10 | Ethylene Glycol | Not detected | NMT 0.1 % |
11 | Heavy metals | Less than 1ppm | NMT 1ppm |
12 | chloride | Less than 70ppm | NMT 70ppm |
13 | Sulphate | Less than 60ppm | NMT 60ppm |
14 | Sulphated ash | 0.003% | NMT 0.007% |
15 | Water | 0.058% | NMT 0.2% |
16 | Assay | 99.99% | NLT 99.5% |