Potentiometric study of acid–base equilibria in the {KCl+LiCl} eutectic melt at temperatures in the range (873 to 1073) K

Quantitative analysis of Eu2+ and Eu3+ in LiCl–KCl eutectic melt by spectrophotometry and electrochemistry

“…The electrochemical method worked effectively to remove O 2À from the melt. The pO 2À in the melt showed 4.98, which was similar to that obtained by using HCl gas [18,23]. After the purification, the melt was used in the titration experiment.…”

“…In this study, the redox behavior of europium ions in the LiCl-KCl eutectic at 773 K was studied by spectrophotometry and by electrochemical analyses. Potentiometric titration was performed for Eu by using yttria-stabilized zirconia membrane electrodes (YSZME) as an activity indicator of oxide anion, O 2À [16][17][18][19][20]. …”

Thermodynamics of the O2/O2− redox couple in molten (LiCl+KCl+Li2O) systems

“…In order to understand chemical and electrochemical behavior of oxide ion, it is indispensible to measure the thermodynamic quantities of oxide ion such as chemical potentials in molten chlorides. Some researchers previously reported on the oxygen electrode reaction in molten chlorides [3][4][5][6][7], however, these results did not coincide with each other, which was attributed to the fact that an oxygen evolution selective electrode on which the oxygen evolution only occurs without side reactions such as dissolutions of the electrode at high temperatures was not available. That is why thermodynamic consideration on the electrochemical processes involving oxide ion such as reduction processes of MOx (M = U, Si, Ti, etc.)…”

On oxoacidic properties and solubilities of beryllium and magnesium oxides in molten (CsCs+KCl+NaCl) eutectic at T=783 K

“…The earlier data on MgO solubility in molten (CsCs + KCl + NaCl) eutectic at T/K = (873, 973 and 1073) are presented in [8]. The dependence of pK s,MgO,N (mole fractions) in molten (CsCl + KCl + NaCl) vs. inverse temperature is presented in figure 2; the experimental errors of the solubility determinations are assumed to be ±0.5 as the usual scatter of similar data obtained by different authors and under different conditions.As seen from figure 2, all the points obtained lie in a straight line.…”