Abstract
Carbaryl hydrolysis was studied in micellar solutions of cetyltrimethylammonium bromide (CTAB) at pH 7.5 The hydrolysis followed first-order kinetics with respect to carbaryl concentration. Above the critical micelle concentration (CMC) the rate of hydrolysis increased with increasing CTAB concentration. A plateau was ultimately reached, at which the rate constant was 30 times the rate constant in an equivalent solution without CTAB. Entropies of activation were calculated to prove that the reaction mechanism did not change in the micellar environment. The binding constant of the micelle for carbaryl and the rate constant in the micellar pseudophase were determined from kinetic data using the pseudophase model. To verify this binding constant, a study of the solubility of carbaryl in CTAB solutions was performed. The results were found to be in very good agreement with those from the kinetic studies.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
