On Cation and Water Transport Numbers in Cellulose Acetate Membranes

Bauzá, Carlos Ruiz; Sánchez, C. Rueda; Garcia, V. M. Barragán

doi:10.1515/jnet.1990.15.4.383

Cited by 5 publications

(3 citation statements)

References 11 publications

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“…By using the usual method [9], the membrane potential <£ m has been determined for the two membranes used and in each one of the 10~3 -10~2 and 10~2 -10" * mol/liter concentration ranges and with each electrolyte used. In Tables 7 and 8 the obtained values are shown.…”

Section: Resultsmentioning

confidence: 99%

“…Obviously, the average salt flow J, given by (1), is not equal to the initial salt flow, J 0 , corresponding to the concentration difference at the beginning, c\ -c°l 9 it is not kept constant during the experiment as a consequence of the diffusion process. The average flow /corresponds to a certain concentration difference in between c° -c° and c\ -c\ and that, in a first approximation, can be considered as the average value of these differences.…”

Section: Theorymentioning

confidence: 99%

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Determination of Diffusion Salt Flow Through Membranes from Measurements of Electric Conductance

Barragán¹,

Ruı́z-Bauzá²

1997

Journal of Non-Equilibrium Thermodynamics

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The salt flow through passive membranes, separating two solutions of the same electrolyte but of different concentrations, has been obtained from a method based on the determination of the electric resistance between two fixed points in the more diluted solution. It permits to determine the membrane system permeability and the ionic permeabilities, if the corresponding membrane potentials are known. The described method has been applied to Millipore membranes of different pore diameter and with different 1-1 electrolyte solutions.

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Section: Resultsmentioning

confidence: 99%

Section: Theorymentioning

confidence: 99%

Determination of Diffusion Salt Flow Through Membranes from Measurements of Electric Conductance

Barragán¹,

Ruı́z-Bauzá²

1997

Journal of Non-Equilibrium Thermodynamics

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show abstract

“…together with electroosmosis measurements, the true cation transport number in the membrane, t + , at a given concentration c, can be determined [18] by means of the equation…”

Section: Membrane Potential Measurementsmentioning

confidence: 99%