Determination of transference numbers with ion-selective electrodes. Transference numbers and activity coefficients of concentrated aqueous solutions of potassium fluoride

Activity coefficients of NaBF4 in aqueous solution

“…In recent years, this drawback has been overcome thanks to the development and improvement of new ion-selective electrodes (ISE). Presently, these electrodes are not only valuable for analytical use, but also may be employed in determining thermodynamic and transport magnitudes [4][5][6]. The bi-ISE system employed in this study is formed of a glass-membrane electrode selective for Na + ions, and a liquid membrane electrode selective for BF À 4 ions.…”

Ion-selective electrodes

“…Bipolar pulse conductivity measurements and measurements taken after the application of potential pulses have further defined the nature of the potentiometric response mechanism of ISE's (89, 90). The determination of transference numbers of membranes using anionand cation-selective electrodes has also aided in understanding the behavior of typical electrodes (91). In addition to the electrical phenomenon that govern the response of ISE's, the effects of temperature compensation on the linear response of electrode systems must be acknowledged.…”

Mean Activity Coefficients of NaCl in the NaCl–SrCl2–H2O Ternary System at 308 K by EMF Method

“…The ion selective electrode is a kind of important chemical sensor that measures the activity of specific ions in solution. So far, there are more than 30 ion selective electrodes. − …”