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Journal of Applied Sciences and Environmental Management
World Bank assisted National Agricultural Research Project (NARP) - University of Port Harcourt
ISSN: 1119-8362
Vol. 18, No. 3, 2014, pp. 530-534
Bioline Code: ja14070
Full paper language: English
Document type: Research Article
Document available free of charge

Journal of Applied Sciences and Environmental Management, Vol. 18, No. 3, 2014, pp. 530-534

 en Conductivity Studies of Binary Mixtures of Ionic and Non-ionic Surfactants at different Temperatures and Concentrations.
COOKEY, GRACE AGBIZU & NWOKOBIA, FRANK UBAKA

Abstract

Conductivity studies of aqueous solutions of binary mixtures of sodium dodecyl sulphate (SDS), an ionic surfactant and n-decyl-n,n-dimethyl-3-ammonio1- propanesulfonate (DPS), a non-ionic surfactant have been carried out at different concentrations and temperatures. The results show that the conductivity of the solutions of SDS increased with increasing temperature but decreased as the concentration of DPS increased. It was also observed that the concentration at which SDS aggregates or micelles begin to form in solution, called critical micelle concentration (CMC) extrapolated from inflection points on the conductivity versus concentration curves increased with increasing temperature but decreased as the concentration of DPS increased. These results have been discussed in terms of the influence of the molecular architecture of SDS and DPS headgroups on mixed micelle formation.

 
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