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RESEARCH PRODUCT

Validity of the electroneutrality and goldman constant-field assumptions in describing the diffusion potential for ternary electrolyte systems in simple, porous membranes

Salvador MafeVicente M. AguilellaJulio Pellicer

subject

Steady stateChemistryInorganic chemistryIonic bondingThermodynamicsFiltration and SeparationElectrolyteBiochemistryMembraneSimple (abstract algebra)Porous membraneGeneral Materials SciencePhysical and Theoretical ChemistryDiffusion (business)Ternary operation

description

Abstract Three numerical algorithms capable of simulating transport processes through simple, porous membranes in the steady state have been employed in order to study the change in the diffusion potential with the membrane thickness and the ionic concentrations for the ternary systems NaClHClH20 and CaCI2NaC1H 2 O. The first simulation procedure uses Poisson's equation, the two others replace this equation by the electroneutrality and Goldman constant-field approximations respectively. From the results presented here, conditions for the applicability of the electroneutrality and constantfield assumption to ternary electrolyte systems are given.

yearjournalcountryeditionlanguage
1986-11-01Journal of Membrane Science
https://doi.org/10.1016/s0376-7388(00)82463-1