Abstract
The exchange of [Co(NH3)6]3+ from its vermiculite complex has been carried out with a number of inorganic and alkyl quaternary ammonium ions of varying ionic sizes. The distribution and selectivity coefficients of the desorbing ions increase in the order: Li>Na>NH4>K>Rb>H>Cs for the monovalent, Ca>Mg for the bivalent and (C2H5)4N>(CH3)4N≪CTA (cetyl trimethyl ammonium) >CP (cetyl pyridinium) for the organic ions. The AG° values of some of the cation exchange reactions have been calculated by an equation of Kielland (1935).
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Das Kanungo, J.L. A Study on the Cation Exchange of [Co(NH3)6]3+ from H-Co (NH3)6-Vermiculite by Inorganic and Quaternary Ammonium Ions. Clays Clay Miner. 23, 361–364 (1975). https://doi.org/10.1346/CCMN.1975.0230506
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DOI: https://doi.org/10.1346/CCMN.1975.0230506