Abstract
The transfer behaviour of alkali metal ions across the water-nitrobenzene interface facilitated by nonionic surfactants poly(oxyethylene)dodecyl ethers (C 12E x ) were investigated by means of cyclic voltammetry. The results show a linear dependence of the reversible half-wave potential Δ w nφ 1/2 on the logarithm of the concentration of alkali metal ions in the aqueous phase. Therefrom, the apparent free energy change of ion transfer facilitated by C 12E x , ‡ w n G 0 tr, was determined. The results indicate that the ion transfer facilitated by C 12E x is attributable to the formation of a hydrophobic complex of alkali metal ion with C 12E x and its ion pairs with the counter anion, and the rate of transfer is controlled by the diffusion of C 12E x from the bulk nitrobenzene phase to the interface.
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.
