Journal of Solution Chemistry

, Volume 46, Issue 1, pp 11–24 | Cite as

An Assessment of the Aggregation and Adsorption Behavior of the Sodium Dodecylsulfate–Cetyltrimethylammonium Bromide Mixed Surfactant System in Aqueous Medium

  • Sanchayita Rajkhowa
  • Sekh Mahiuddin
  • K. Ismail


Sodium dodecylsulfate and cetyltrimethylammonium bromide mixtures are important catanionic systems, as they have an inherent tendency to form vesicle structures. Despite extensive studies on the phase behavior and microstructures, there is dearth of basic information on the aggregation and adsorption behavior of this mixed system. In this work the critical micelle concentration, surface tension reduction effectiveness, surface excess, mixed micelle and monolayer compositions, activity coefficients, interaction parameters, counterion binding and Gibbs energy terms of this mixed system are determined by measuring its surface tension and conductance as a function of composition. The dependence of mixed micelle composition on surfactant concentration has been successfully demonstrated.


Critical micelle concentration Mixed micelle Mixed monolayer Synergism Interaction parameter 



One of the authors (SR) is thankful to the UGC, New Delhi for the Research Fellowship.


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Copyright information

© Springer Science+Business Media New York 2016

Authors and Affiliations

  • Sanchayita Rajkhowa
    • 1
  • Sekh Mahiuddin
    • 2
  • K. Ismail
    • 1
  1. 1.Department of ChemistryNorth-Eastern Hill UniversityShillongIndia
  2. 2.North East Institute of Science and TechnologyJorhatIndia

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