V. Taghikhani et al., Measurement and correlation of the individual ionic activity coefficients of aqueous electrolyte solutions of KF, NaF and KBr, CAN J CH EN, 78(1), 2000, pp. 175-181
ion selective electrodes were used to measure the activity coefficients of
individual ions at 298.2 K in aqueous solutions of KF, KBr and NaF up to 3,
2 and 1 molal, respectively. The mean ionic activity coefficients of the e
lectrolytes obtained from the values of individual ions show good agreement
with values reported in the literature. The experimental results confirm t
hat the activity coefficients are different for the anion and the cation in
an aqueous solution of a single electrolyte. it is also confirmed that the
deviation from ideality for each ion depends on its counterion. The Khoshk
barchi-Vera equation was used to correlate the experimental data.