1 | Description | Clear, colourless, slightly hygroscopic, viscous liquids, having a slight, characteristic odour, and a specific gravity at 25°C of 1.12 | Clear to slightly hazy, colourless or practically colourless, slightly hygroscopic, viscous liquids, having a slight, characteristic odour, and a specific gravity at 25°C of about 1.12 |
2 | Solubility | Complies | Miscible with water, soluble in acetone,in alcohol,in chlororform, in ethylene glycol monoethyl ether,in ethyl acetate , in toluene,and in methylene chloride,practically insoluble in fatty oils and in mineral oils.Insoluble in ether and in hexane |
3 | Identification A (By Viscosity) | Complies | Kinematic viscosity should be between 94 &116 mm2.S 1 and dynamic viscosity should be between 105 & 130 mPa.s at 20°C |
4 | Identification B (By Chemical test) | Complies | An abundant, white, crystalline precipitate is formed. |
5 | Identification C (By Chemical test) | Complies | The liquid phase becomes blue. |
6 | Appearance of solution | Complies | The solution is clear and not more intensely coloured than reference solution BY6. |
7 | Completeness and colour of solution | Complies | clear solution |
8 | Assay | 100.9% | 95.0%-105.0% (Average molecular weight, 380-420) |
9 | Acidity or alkalinity | Complies | NMT 0.1ml of 0.1M sodium hydroxide should required to change the colour of the indicator to blue |
10 | Viscosity | 7.2 Centistokes | 6.8-8.0 Centistokes |
11 | Kinematic Viscosity | 107 mm2.s-1 | 94 - 116 mm2.s-1 |
12 | Dynamic Viscosity | 120 mPa.s | 105 - 130 mPa.s |
13 | Hydroxyl value | 282.9 | 264-300 |
14 | Reducing substances | Complies | The solution is not more intensely coloured than reference solution R3 |
15 | Formaldehyde | Less than 30ppm | NMT 30ppm |
16 | Ethylene glycol and Diethylene glycol | Not detected | NMT 0.25% (Sum of ethylene glycol & diethylene glycol) |
17 | Ethylene oxide | 0.8ppm | NMT 1ppm |
18 | Dioxan | Not detected | NMT 10ppm (10 µg/g) |
19 | Water | 1.2% | NMT 2.0% |
20 | Residue on ignition | 0.02% | NMT 0.1% |
21 | pH | 6.46 | 4.5-7.5 |