D 69 Dokashenko, S. I. Capacitance of the double electric layer on liquid bismuth in molten alkali halides [Text] / S. I. Dokashenko, V. P. Stepanov, M. V. Smirnov // Melts. - 1988. - V. 2, N 5. - P385-390. - Bibliogr.: 12 ref. Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): ЕМКОСТЬ -- СЛОЙ ЭЛЕКТРИЧЕСКИЙ -- ВИСМУТ ЖИДКИЙ -- Bi -- МЕТАЛЛЫ ЩЕЛОЧНЫЕ -- ГАЛОГЕНИД ЩЕЛОЧНЫХ МЕТАЛЛОВ -- РАСПЛАВ ГАЛОГЕНИДНЫЙ Аннотация: The capacitance of the double electric layer on liquid bismuth in molten alkali halides is measured as a function of temperature T and potential E. In general, the minimum-capacitance potential (MCP) does not coincide with the zero-charge potential (ZCP) |
S 83 Stepanov, V. P. Composition of the surface layer of molten binary mixtures of alkali fluorides [Text] / V. P. Stepanov, M. V. Smirnov // Melts. - 1988. - V. 2, N 5. - P391-395. - Bibliogr.: 7 ref. Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): СЛОЙ ПОВЕРХНОСТНЫЙ -- СМЕСЬ РАСПЛАВЛЕННАЯ -- СМЕСЬ БИНАРНАЯ -- ФТОРИД ЩЕЛОЧНЫХ МЕТАЛЛОВ -- МЕТАЛЛЫ ЩЕЛОЧНЫЕ -- СОСТАВ -- ПОВЕРХНОСТЬ Аннотация: Using the method of maximum pressure in gas bubbles, the surface tensions of nine molten binary mixtures of alkali fluorides are measured. The temperature and concentration dependences of the properties are found. The larger the difference between the cation cizes in the mixture, the greater is the deviation of the surface tension isotherms from linear behavior toward decreasing values. The composition of the surface layer of the mixtures is calculated |
S 68 Smirnov, M. V. Molar volume of molten binary mixtures of alkali fluorides [Text] / M. V. Smirnov, V. P. Stepanov // Melts. - 1988. - V. 2, N 5. - P396-400. - Bibliogr.: 11 ref. Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): ФТОРИД РАСПЛАВЛЕННЫЙ -- ФТОРИД ЩЕЛОЧНЫХ МЕТАЛЛОВ -- МЕТАЛЛЫ ЩЕЛОЧНЫЕ -- ОБЪЕМ МОЛЬНЫЙ -- СМЕСЬ БИНАРНАЯ -- СМЕСЬ РАСПЛАВЛЕННАЯ Аннотация: Using the method of hydrostatic pressure of liquid columns, the densities of nine molten binary mixtures of alkali fluorides were determined as functions of temperature and composition of the melts. From the experimental data, molar volume was calculated, the value of which for the mixtures turned out to be greater that the additivelly calculated value. Deviations from the additive values increase with increasing difference between the cations substituting for one another in the mixture |
S 68 Smirnov, M. V. Density and molar volume of LiCl-CsCl melts [Text] / M. V. Smirnov, V. P. Stepanov, V. A. Khokhlov // Electrochemistry of molten and solid electrolytes: Tranactions (Trudy) N 9 of the Institute of Electrochemistry Urals Academy of Sciences. - 1968. - V. 6: Structure and properties of electrolytes and kinetics of electrode processes. - P5-9. - Bibliogr.: 6 ref. Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): ПЛОТНОСТЬ -- ОБЪЕМ МОЛЬНЫЙ -- LiCl -- CsCl -- LiCl-CsCl -- Li -- Cs -- ЛИТИЙ -- ЦЕЗИЙ -- ХЛОРИД ЛИТИЯ -- ХЛОРИД ЦЕЗИЯ -- РАСПЛАВ ХЛОРИДНЫЙ |
S 68 Smirnov, M. V. Surface tension of molten LiCl-CsCl mixtures [Text] / M. V. Smirnov, V. P. Stepanov // Electrochemistry of molten and solid electrolytes: Tranactions (Trudy) N 9 of the Institute of Electrochemistry Urals Academy of Sciences. - 1968. - V. 6: Structure and properties of electrolytes and kinetics of electrode processes. - P10-14. - Bibliogr.: 9 ref. Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): LiCl -- CsCl -- LiCl-CsCl -- Li -- Cs -- ЛИТИЙ -- ЦЕЗИЙ -- ХЛОРИД ЛИТИЯ -- ХЛОРИД ЦЕЗИЯ -- РАСПЛАВ ХЛОРИДНЫЙ -- НАТЯЖЕНИЕ ПОВЕРХНОСТНОЕ -- СМЕСЬ РАСПЛАВЛЕННАЯ |
E 43 Electrocapillary phenomena and doublelayer capacity on solid gold in molten alkali chlorides [Text] / M. V. Smirnov, V. P. Stepanov, V. S. Belyayev, S. I. Dokashenko // 37-th Meet. Int. Soc. Electrochem. (Vilnius, 1986, Aug., 24-31): Ext. Abstr. - 1986. - V. 3. - P45-47 Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): ЯВЛЕНИЯ ЭЛЕКТРОКАПИЛЛЯРНЫЕ -- ЗОЛОТО ТВЕРДОЕ -- ХЛОРИД -- РАСПЛАВ ХЛОРИДНЫЙ -- Au |
W 60 Wetting and cryolite bath penetration in graphitized cathode materials [Текст] / A. V. Frolov, A. O. Gusev, N. I. Shurov, N. P. Kulik, L. V. Sitnikov, L. M. Babushkina, V. P. Stepanov, Yu. P. Zaikov, A. P. Khramov, V. B. Malkov // Light Metals: proc . - 2006. - С. 645-649. Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): MATERIALS -- PENETRATION |
L 85 Lokett, V. N. The density of fluoride-iodide melts with a limited mutual solubility of components [Текст] / V. N. Lokett, I. V. Rukavishnikova, V. P. Stepanov // Russian Journal of Physical Chemistry A. - 2008. - Vol. 82, № 2. - С. 177-180 Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): POTASSIUM -- RUBIDIUM \\\\Cserver\\dist\\НБО\\Cтатьи БД ИВТЭ\\Russian Journal of Physical Chemistry A\\2008, V. 82, № 2, С. 177-180.pdf |
S 83 Stepanov, V. P. Liquid + liquid equilibrium in mixtures of lithium fluoride with potassium and rubidium halides / V. P. Stepanov, L. M. Babushkina, S. I. Dokashenko // Journal of Chemical Thermodynamics. - 2012. - № 51. - С. 12-16. - Bibliogr. : p. 16 (33 ref.) . - ISSN 0021-9614 Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): ЭЛЕКТРОПРОВОДНОСТЬ -- СЕГРЕГАЦИИ -- ЩЕЛОЧНЫЕ МЕТАЛЛЫ Аннотация: The liquid + liquid phase equilibrium of molten mixtures of lithium fluoride with potassium and rubidium halides was investigated over an extended temperature range in the two-phase region along the saturation line by the electrical conductivity method. In the overwhelming majority of mixtures, the electrical conductivity for coexisting equilibrium phases increased when the temperature increased. For mixtures with only potassium bromide, it decreased because of the extensive solubility of potassium bromide in lithium fluoride. The electrical conductivity for the light phase was half the value of the conductivity of the pure lithium fluoride. The electrical conductivity of the heavy phase did not differ enough from the conductivity of the pure heavy alkali halides. At the same time, the solubility of the heavy component in LiF was many times less than the lithium fluoride solubility in the lower phase. This contradiction points to essential reorganisation of the structure of the light phase. The difference between the conductivities of the coexisting phases at equal temperatures increased as the radius of the halide anion or alkali cation grew. The temperature growth led to the increase in the conductivity difference along the saturation line for mixtures of LiF with RbI. For mixtures of LiF with lighter alkali halides, it decreased up to zero at the critical mixing point for LiF + KBr mixtures as the temperature increased. Between the coexisting equilibrium phases, a transient layer was revealed, where a conductivity gradient exists. The thickness of this layer decreased as the temperature decreased and the sum of the ionic radii of the mixtures increased. |
S 83 Stepanov, V. P. Sound Velocities for Dissolving AgI + LiCl Melts / V. P. Stepanov, V. I. Minchenko // Journal of Chemical & Engineering Data. - 2014. - Vol. 59, № 11. - С. 3888-3893 Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): УЛЬТРАЗВУК -- СКОРОСТЬ ЗВУКА -- ФАЗОВЫЙ ПЕРЕХОД -- ТЕМПЕРАТУРНЫЕ ЗАВИСИМОСТИ Аннотация: The ultrasonic velocities of a molten stratified mixture at a molar ratio of 0.3AgI and 0.7LiCl (the composition corresponding to the top of the miscibility gap) were measured along the saturation line over a wide temperature range using the pulse method to establish the characteristics of mixing salts comprising different chemical bonds. It is shown that the coefficients of the temperature dependences for the sound velocities in the coexisting phases have opposite signs as a result of the superposition of the temperature and concentration factors. It is found that the difference, Δu, between the magnitudes of the sound velocities for the coexisting phases decreases with increasing temperature and becomes zero at 1250 K. This temperature corresponds to the critical phase transition point, Tc. The temperature dependence of the sound velocity difference, Δu, for the system studied is described by the equation Δu ≈ (Tc – T)β, where β = 0.900, which is close to the value 0.896 obtained for the previously investigated AgI+NaCl melt but is less than the value found for alkali halide melts (β = 1.02), in which long-range Coulomb forces between ions prevail. The results are discussed in terms of the peculiarity of the chemical bond in silver iodide. |