CASR |
: | 25322-68-3 |
Molecular Formula |
: | H(OCH2)nCH2OH |
Molecular Weight |
: | 380-420 |
| Specifications | |
|---|---|
| Appearance: | 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 |
| Solubility: | Miscible with water, soluble in acetone, in alcohol, in chlororform, in ethylene glycol monoethyl ether, in ethyl acetate , in toluene, in methylene chloride,practically insoluble in fatty oils and in mineral oils. Insoluble in ether and in hexane |
| Identification A (By Viscosity): | Kinematic viscosity should be between 94 &116 mm2.S-1 and dynamic viscosity should be between 105-130 mPa.s at 20°C |
| Identification B (By Chemical test): | An abundant, white, crystalline precipitate is formed. |
| Identification C (By Chemical test): | The liquid phase becomes blue. |
| Appearance of solution: | The solution is clear and not more intensely coloured than reference solution BY6. |
| Completeness and colour of solution: | clear solution |
| Assay: | 95.0%-105.0% (Average molecular weight, 380-420) |
| Acidity or alkalinity: | NMT 0.1ml of 0.1M sodium hydroxide should required to change the colour of the indicator to blue. |
| Viscosity: | 6.8-8.0 Centistokes |
| Kinematic Viscosity: | 94 - 116 mm2.s-1 |
| Dynamic Viscosity: | 105 - 130 mPa.s |
| Hydroxyl value: | 264-300 |
| Reducing substances: | The solution is not more intensely coloured than reference solution R3. |
| Formaldehyde: | NMT 30ppm |
| Ethylene glycol and Diethylene glycol: | NMT 0.25% (Sum of ethylene glycol & diethylene glycol) |
| Ethylene oxide: | NMT 1ppm |
| Dioxan: | NMT 10ppm (10 µg/g) |
| Water: | NMT 2.0% |
| Residue on ignition: | NMT 0.1% |
| pH: | 4.5-7.5 |
| Total aerobic microbial count: | NMT 100 CFU/ml |
| Total Yeast & mold count: | NMT 10 CFU/ml |
| E.coli: | should be absent/ml |
| Staphylococcus aureus: | should be absent/ml |
| Pseud. aeruginosa: | should be absent/ml |
| Bile-tolerant gram negative bacteria: | should be absent/ml |
| Becterial endotoxins test: | NMT 2.5 EU/ml |
