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Soil Science Society of America Journal Abstract -

Transport Numbers and Mobilities of Ions in Bentonite Membranes1


This article in SSSAJ

  1. Vol. 36 No. 4, p. 577-582
    Received: Mar 25, 1971
    Accepted: Apr 25, 1972

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  1. I. Shainberg and
  2. W. D. Kemper2



Na-clay was compacted by porous barriers between solutions of different concentrations. Conductance of the clay and electrical potentials across the clay were measured and used to calculate the transference numbers for the Na ion. The transference numbers calculated from conductivity studies were higher than those calculated from emf measurements. A qualitative explanation for the lower numbers estimated from potential measurement is proposed which involves osmotically induced convective movement.

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