[en] The electric conductivity is measured in molten binary mixtures NaCl-CsCl, NaBr-CsBr, NaI-CsI to ascertain the effect which is induced by the substitution of halide anions, with the cation composition of the above mixtures remaining unchanged. It is shown that the specific electric conductivity of all the investigated mixtures is smaller as compared with the additive values. The equivalent electric conductivity calculated on the specific electric conductivity, is also smaller than the additivity values. Maximum deviations are observed in melts of equimolar composition. At 1100 K, the relative value of the maximum deviations amounts to iodide melts by 16 %; in bromide melts, by 17 %; in chloride melts, by 18 %. The closeness of the eqivalent electric conductivity deviations indicates that the melts are of the same type as regards ion composition

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[en] The viscosity and density of the molten binary mixtures of NaCl-CsI and NaI-CsCl in the mutual system of NaCl-CsI-NaI-CsCl are discussed. Analytical expressions for their temperature and concentration dependences are presented. The observed principles governing the variation of these properties with composition are explained proceeding from the model of the complex structure of the molten alkali metal halogenides

[en] Density of KI-K, RbCl-Rb and CsCl-Cs melts countaining from 5 to 95 at% of alkali metal is measured by means of hydrostatic weighting. The molar volumes of metal-salt melts are calculated. The results obtained are compared to data for other alkali metal solutions in their molten halides

[en] Refractive indices of molten binary mixtures of lithium, sodium and potassium tungstates and ditungstates. Are measured by ellipsometric method depending on the temperature and chemical compposition. Their molar refraction changing weakly with the temperature is calculated. Polarization and radius of WO₄^2- anion and WO₃ molecule in molten lithium, sodium, potassium tungstates and quasiliquid tungsten trioxide are evaluated

[en] Effective electron radii in liquid homogeneous mixtures of alkali metals and their halides are evaluated within the framework of rigid-sphere approximation, halide melt complex structure model and respective state theory. It is shown that application of the respective state theory based on the search and introduction of dimensionless parameters (criteria) of similaring for the description of liquids with different character of interparticle x linkings and taking account of their complex structure, can be useful when evaluating the density of particle packing and other properties of ion-electron metls, linked with the molar volume

No abstract available

[en] The results are given of measuring density and viscosity of melted binary mixtures NaI-CsF and NaF-CsI. The density of the melts has been measured by the method of hydrostatic weighing. Viscosity has been measured by the method of pendulum torsional vibrations; the pendulum is a platinum ball immersed into the melt in a platinum crucible. The analytical expressions of temperature dependence of density and viscosity of the melts under study are given. A change pattern of these properties with alternating composition are explained proceeding from the mode of complex structure of melted alkaline metal halogenides and their mixtures

[en] Density, viscosity and electric conductivity of (LiCl-KCl)_eut-CuCl-CuCl₂ melts are studied depending on their composition and temperature (673-873 K) in the atmosphere of gaseous chlorine. Calculation of ion and electron contributions to electricity transfer, depending on molar-share concentration of copper chlorides is performed

No abstract available