Melts alkali halide

The activation energy of the entire process is determined by the relative magnitude of the bond energy of individual and complex ions A compared with the internal energy of the melt A The molar conductivity versus the ratio of pair energy to melt energy is shown 

In mixed electrolytes like LiCl/KCl several more complexes should be considered but the general concept is a way to also understand the transport properties of such mixtures. 

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At a platinum electrode, highly purified FLINAK has a voltammetric window extending from about +1.5 to -2.0 V vs. the nickel reference electrode [7]. The positive limits of the alkali halide melts discussed herein arise from the oxidation of halide ions, whereas the negative limits are due to reduction of the alkali metal ions. Because chloride ion is substantially easier to oxidize than fluoride ion, the potential window of the LiCl-KCl melt is approximately 1.5 V smaller than that for FLINAK. 

Scattering by Alkali Halides Melts A Comparison of Shell-Model and Rigid-Ion Computer Simulation Results. 

The coefficients of p Mecr -a dependences for some alkali halide melts ... 

It is of interest to determine the ratio of the concentrations of the ionized (Me2+) and non-dissociated (MeO) forms of metal-oxides in their saturated solutions in different alkali-halide melts. Naturally, the necessary data can only be obtained for oxides with appreciable solubilities in the ionic melts, which can be related to the appearance of the unsaturated solution section in the corresponding titration curves. Equations (4.14) and (3.6.7) make it possible to calculate the said ratio of the ionized and non-dissociated forms of... 

The electroreduction of zirconium halides in alkali halide melts has led to the measurement of reversible potentials (Table XXV) in the temperature range 670°-750°C (550). Phase rule studies of the mixed systems preceded the cell studies and revealed that the phase diagrams of the KCl-ZrCl2 and NaCl-ZrCl2 systems were of the simple eutectic type. The liquidus curves of these binary systems were established by freezing point measurements. The melting point of pure zirconium dichloride was found to be 722° 1°C. In the potassium chloride-zirconium dichloride system, the eutectic is found at 698° 1°C at... 

Layers solids from alkali halide melts 6, 3.11.7.2... 

Few data exist on niobium halides due to the great reactivity of these compounds which makes it extremely difficult to obtain oxychloride-free halides. Also experimental investigations are not easy since they have high vapor pressure and low melting points compared to the alkali halides melts.The data relative to the pure niobium halides reported on thermodynamic tables 77,8/ were mostly obtained by estimation. ... 

SOLID AND LIQUID NbClj-MCl-M Cl-MIXTURES For the investigation of NbCls in alkali halide melts low melting eutectic mixtures have been selected due to the corrosivity of NbCls at temperatures above 600 °C. Mixtures of interest are CsCl/NaCl (Tgut=490 °C) and LiCl/KCl (Teut = 375 °C). In these two systems studies of the electrochemical reduction mechanism of Ta(V) and Nb(V) have recently been performed in our group [5,20]. The phase diagrams of these ternary systems are not reported in literature, only the binary mixtures have been measured up to now [21,22,23]. Fig.3 shows the phase diagram of the pseudo binary system NbCls-CsCl/NaCl (eut) up to a concentration of x =0.45 as measured with... 

This is the simplest NEMD scheme. Formally, the algorithm is equivalent to a method to simulate electrical conductivity of a 1-1 molten salt (say alkali halide melt). Each particle is assigned a charge (-Fl or —1) which couples to the external field in the same way as real charges couple to the (constant) electrical field. The charges are called color charges because they are visible only to the external field, the interparticle potentials being unaffected by them. The derivation starts from the color Hamiltonian... 

SchoUiom R, Lerf A (1975) Redox reactions of layered metal disulfides in alkali halide melts. J Less Common Met 42 89-100... 

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