Free energies of transfer of alkali metal fluorides from water to hydrogen peroxide + water and methanol + water mixtures using ion-selective electrodes

Gibbs Energies of Transfer of Cations from Water to Mixed Aqueous Organic Solvents

“…Therefore, the averaged data at x MeOH g 0.7 for these two ions are classified as Tentative. The data of Covington and Thain 93 for Rb + appear to be high at x MeOH > 0.4 and have been rejected. For the other univalent cations, relatively fewer data are available so these have been given a Tentative classification, pending future verification.…”

Thermodynamics of Preferential Solvation of Electrolytes in Binary Solvent Mixtures

“…Hence the electrical terms in Equation 57 disappear. Measurements of AGt(x) e m i x were made with ion-selective electrodes (26,27) in these solvent mixtures to effect a comparison through Equation 57 and NMR measurements with thermodynamic data. Studies were made of 7 Li, 23 Na, 87 Rb, 133 Cs, 19 Normalized plots of 6/dp against Xp for all available data for this solvent system are shown in Figure 3.…”

Activity coefficients of LiCl in (PEG 4000+water) at T=(288.15, 298.15, and 308.15)K

“…Various authors have exploited the quasi-Nernstian response shown by some glass electrodes toward different monovalent ions. For example, Covington and Thain [16] compared different types of selective electrodes and described the precautions and safeguards necessary to obtain reliable results. Among electrodes studied by these authors were those termed monovalent cation-responsive glass electrodes, which could respond to one or another ion, but only when there was no other ions present that were capable of causing interference.…”