Conductometric studies and thermodynamics of dissociation and association of cerium and thorium laurate in mixed organic solvents

The conductometric studies of the solutions of cerium and thorium laurate in the mixture of 70/30 benzenemethanol (v/v) has been carried out at 25-40 deg C in order to determine the CMC, limiting molar conductance, dissociation constant and thermodynamic parameters for both dissociation and association processes. The results show that these soaps behave as a weak electrolyte in benzene-methanol and Debye-Huckel-Onsager's equation is not applicable to the solutions of these soaps and micellization process is favored over the dissociation process. (author)