Measurement of transference numbers in molten oxide mixtures

Malkin, V.I.; Khokhlov, Sergey; Shvartsman, L. A.

doi:10.1016/0020-708x(57)90022-4

Cited by 7 publications

(1 citation statement)

References 1 publication

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“…Laity (7} reviewed the relevant transport studies prior to his bubble-cell experiments. Methods using electrode displacement (8), capillary rise (9), moving boundary {10}, and radioactive tracer techniques (11,12,13,14, 15} have since been reported.…”

Section: Introductionmentioning

confidence: 99%

Ion mobilities in fused salts

Wolf

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The transport numbers of the chloride ion in the pure molten alkaline earth chlorideshroe been determined. A modified Stokes• law was applied to the motion of the individual ions. Application of the assumptions made in invoking this law gave a qualitative estimate as to the degree of association in MgC1 2 , cac1 2 , SrCl2, Bacl 2 , znc1 2 , and PbC1 2 • Several trends were observed which were consistent with the chemical properties of the salts studied. Because no suitable radioactive metal isotopes were available, tracer studies on metal transport were not ineluded. Stable isotopes could be used in conjunction with a mass spectrometer to determine isotopic transport. The temperature increase due to the passage of current within the membrane was found to be extreme in some cases. Previous transport number determinations in Pyrex cells at high temperatures and high amperage were placed in question. An additional 11 tracer 11 experiment using a foreign univalent cation was proposed, in principle, for following the MCl+ ion.

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Section: Introductionmentioning

confidence: 99%

Ion mobilities in fused salts

Wolf

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Ionic Transport in PbO–SiO₂‐Melts (I). Tracerdiffusion and Chemical Interdiffusion

Langanke¹,

Schmalzried²

1979

Ber Bunsenges Phys Chem

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Tracerdiffusion coefficients of Si and Pb in PbO‐SiO2‐melts are determined at 850°C between 0.1 < Xsio2 < 0.6. In addition, the temperature dependence of DPb is measured at the metasilicate composition. The chemical interdiffusion coefficient is determined at the same temperature in the quasibinary system PbO‐SiO2 between 0.3 < Xsio2 < 0.6. Theoretical relations are deduced that relate tracerdiffusion and interdiffusion for quasibinary silicate melts. The measured diffusion data show that the cross coefficients Lik (i ≠ k) cannot be neglected in the interpretation of interdiffusion. Also, they indicate a change in the diffusion mechanism between the metasilicate and the orthosilicate composition.

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