The critical micellar concentrations of sodium dodecyl sulphate solutions have been measured at 20°, 40° and 60°C in three different NaCl concentrations. These results are compared with published values obtained by other methods. An equation of the Clausius-Clapeyron type is used to calculate heats of micelle formation. The limitations of this equation and of other thermodynamic treatments of micellization, and the possibility of ion exchange on the micelle are considered.
All Science Journal Classification (ASJC) codes
- Physics and Astronomy(all)
- Physical and Theoretical Chemistry