Base catalyzed hydrolysis of aerosol OT in aqueous and aquo-dioxane media

Article abstract of DOI:10.1002/kin.550261103

The OH^- ion catalyzed hydrolysis of AOT and sodium mono-methyl succinate m aqueous and aquo-dioxane media has been studied. The second-order rate constant for the former has been found to be nearly ten times slower than that of the latter. At AOT concentrations above CMC, the rate constants become insensitive to the concentration in the studied range of temperature, 25 °C-40 °C. The activation parameters for the kinetic process have been found to be reasonable, negative entropy of activation has supported a stable transition state complex. A good enthalpy-entropy compensation of the kinetic process has been found both for AOT and sodium monomethyl succinate in aqueous and aquo-dioxane media supporting similar nature of the transition state complexes in the hydrolytic reactions. The enthalpies of hydrolysis of AOT and the half ester of succinic acid in aqueous and aquo-dioxane media have been also reported.