Abstract
The degree of exchange of Na + with resin carboxylic protons as a function of pH was measured by titration. The ion-exchange behaviour was characterized with a model in which the assumptions were made that the resin has two types of carboxylic sites with different reactivities and the reactivity of each site decreases steadily as the extent of the exchange increases. The equilibrium conditions derived for the exchange reactions are expressed by a concentration ratio term and an exponential term for the coverage of the exchanged site, analogous to the Frumkin isotherm. The constants included in the model were determined by multiparametric curve fitting. Fitting with other models were also attempted. It was found that the proposed model provides the best description of the experimental data.
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.
