1 | Description | Clear to slighly hazy, colourless, slightly hygroscopic, viscous liquids, having a slight, characteristic odour | Clear to slightly hazy, colourless or practically colourless, slightly hygroscopic, viscous liquids, having a slight, characteristic odour. |
2 | Solubility | Passes | Miscible with water, soluble in acetone, in alcohol, in chloroform, in ethylene glycol monoethyl ether, in ethyl acetate, in toluene. insoluble in ether and in hexane. |
3 | Specific gravity, 25°C | 1.12 | ~ 1.12 |
4 | Assay | 97.66% | 95.0%-105.0% (Average molecular weight) |
5 | Residue on ignition | 0.098% | 0.1% max |
6 | Heavy metals | NMT 5ppm | 5ppm max |
7 | free ethylene oxide and 1,4-Dioxane | 2.39 µg/g | 10 µg/g max |
8 | Ethylene glycol and Diethylene glycol | 0.005% | 0.25% max |
9 | pH | 5.24 | 4.5-7.5 |
10 | Completeness and colour of solution | Passes | Passes test |
11 | Viscosity | 7.819 | 6.8-8.0 |