On the Electrical Conductivity of Microemulsions Stabilized by Sodium Dodecyl Sulfate and 1-Butanol at Constant Water to Surfactant Molar Ratio


  • Rutgers, The State University of New Jersey, Department of Chemistry and Chemical Biology, New Brunswick, NJ, 08903, United States
  • Sankardev College, Department of Chemistry, Shillong, India
  • North Eastern Hill University, Department of Chemistry, Shillong, 793 002, India


Electrical conductivity of water/sodium dodecyl sulfate/l-butanol/oil microemulsions having molar ratios of water to surfactant and surfactant to cosurfactant equal to 44 and 0.1144 respectively, was measured at 25°C using eight different oils (octane, benzene, toluene, carbon tetrachloride, chloroform, cyclohexane, m-xylene and nitrobenzene). These microemulsions have been found to fall in the w/o and bicontinuous regions over the range of volume fractions of oils covered in this study. The specific conductivity data were least-squares fitted to a virial expression. In the w/o region the dimensional characteristics of the microemulsions were estimated.


Microemulsion, Sodium Dodecyl Sulfate, Butanol, Oil, Electrical Conductivity.

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