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Transport characteristics of some carboxylic acids in the polymeric anion‐exchange membrane Neosepta‐AMH: Batch experiments
Author(s) -
Palatý Zdeněk,
Stoček Pavel,
Žáková Alena,
Bendová Helena
Publication year - 2007
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.26516
Subject(s) - tartaric acid , oxalic acid , membrane , citric acid , chemistry , sorption , ion exchange , mass transfer , dialysis , carboxylic acid , nuclear chemistry , chromatography , inorganic chemistry , polymer chemistry , organic chemistry , ion , biochemistry , adsorption , medicine
This article reports the transport of selected carboxylic acids—citric acid, oxalic acid, and tartaric acid—through an anion‐exchange membrane (Neosepta‐AMH) in a two‐compartment dialysis cell. These basic data have been completed by measurements of the sorption isotherms. The mass‐transfer rate has been quantified by the following transport characteristics: the overall dialysis coefficient, the permeability of the membrane, and the membrane mass‐transfer coefficient. The sorption experiments have revealed that the Neosepta‐AMH membrane exhibits the highest affinity to tartaric acid, whereas the lowest affinity has been found for citric acid. The analysis of the mass‐transfer data has shown that the membrane is relatively permeable for oxalic acid: all three transport characteristics for oxalic acid are approximately 1 order of magnitude higher than those for citric or tartaric acid. © 2007 Wiley Periodicals, Inc. J Appl Polym Sci 106: 909–916, 2007