2016-Sustainable Industrial Processing Summit
SIPS 2016 Volume 9: Molten Salts and Ionic Liquids, Energy Production

Editors:Kongoli F, Gaune-Escard M, Turna T, Mauntz M, Dodds H.L.
Publisher:Flogen Star OUTREACH
Publication Year:2016
Pages:390 pages
ISBN:978-1-987820-24-9
ISSN:2291-1227 (Metals and Materials Processing in a Clean Environment Series)
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    Electrical Conductivity Of Molten Cadmium Chloride At Elevated Temperatures

    Alexei Potapov1; Alexander Salyulev1;
    1INSTITUTE OF HIGH TEMPERATURE ELECTROCHEMISTRY, Ekaterinburg, Russian Federation;
    Type of Paper: Regular
    Id Paper: 136
    Topic: 13

    Abstract:

    In quartz capillary type cells of two different designs the electrical conductivity of molten CdCl2 was measured across a wide temperature range (∆T = 628 K), from 846 K to as high as 1474 K (when the vapor pressure reached 1.5 MPa), which is by 273 K higher than the temperature previously achieved.
    In the temperature range of 846-1474 K the electrical conductivity of molten CdCl2 increases from 1.886 to 2.891 S/cm. At the same time, the conductivity growth rate gradually slows down and the conductivity activation energy decreases from ~ 8.9 to ~ 3.3 kJ/mol. It is evident that at higher temperatures a maximum conductivity will be reached, after which the electrical conductivity begins to decrease. In our opinion, about 100 degrees remain to reach the conductivity maximum.
    By combining our and Granthamís data, we evaluated the effect of the metallic cadmium additions on the electrical conductivity of molten CdCl2. Surprisingly, we obtained an alternating result. The addition of 10.1 at% Cd to molten CdCl2 changes its conductivity as follows: -3.1% (873 K), -1.1% (973 K), ~ 0% (1083 K), + 0.7% (1173 K), + 1.7% (1273 K), + 3.7% (1373 K) and + 9.1% (1473 K).
    Some conclusions regarding the structural changes in the CdCl2 and CdCl2 - Cd melts with temperature were drawn.
    This work was supported by the Ministry of Education and Science of the Russian Federation, project No. 14.607.21.0084 (RFMEFI60714X0084).
    Keywords: Molten CdCl2, CdCl2 - Cd solutions, electrical conductivity.

    Keywords:

    Chloride; Compounds; Conductivity; Industry;

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    Cite this article as:

    Potapov A and Salyulev A. Electrical Conductivity Of Molten Cadmium Chloride At Elevated Temperatures. In: Kongoli F, Gaune-Escard M, Turna T, Mauntz M, Dodds H.L., editors. Sustainable Industrial Processing Summit SIPS 2016 Volume 9: Molten Salts and Ionic Liquids, Energy Production. Volume 9. Montreal(Canada): FLOGEN Star Outreach. 2016. p. 121-122.