| Autor: |
Niraula, Tulasi Prasad, Shah, Sujit Kumar, Chatterjee, Sujeet Kumar, Bhattarai, Ajaya |
| Zdroj: |
Karbala International Journal of Modern Science; March 2018, Vol. 4 Issue: 1 p26-34, 9p |
| Abstrakt: |
The surface tension and viscosity of sodiumdodecyl sulfate (SDS) in water and in 0.10, 0.20, 0.30 and 0.40 volume fractions of methanol in water at 298.15 K, 308.15 K, 318.15 K and 323.15 K are measured. The critical micelle concentrations (CMCs) of the solutions are determined from both the surface tension and viscosity. The critical micelle concentrations (CMC) of SDS in water as well as in methanol-water mixture are found to increase with increase in temperature. The CMC of SDS increases with the addition of methanol. The surface properties, such as the surface excess concentration Гmax, minimum surface area Amin, surface pressure πcmcand packing parameter Pare calculated from the surface tension data. Viscosity Bcoefficients of the SDS solutions are calculated using the relative viscosity data. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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