ISSN print edition: 0366-6352 ISSN electronic edition: 1336-9075 Registr. No.: MK SR 9/7 Published monthly

Influence of organic solvents on the selectivity of a cation exchanger in acidic media

M. Šimek

Department of Analytical Chemistry, Faculty of Natural Sciences, J. E. Purkyně University, 611 37 Brno

Abstract: The effect was studied of org. solvents and inorg. acids on the selectivity of a strongly-acid cation exchanger for bivalent cations. Increase of Dg (distribution coeffs.) of Mg²⁺, Co²⁺, and Mn²⁺ due to addn. of a solvent (MeOH, EtOH, AcOH) was const. in 0.1-1M acid solns., and the dependence of log D_g on 1/ε was linear (ε is dielec. const.). Sorption of Mg²⁺ in 0.1-2M HClO₄, H₂SO₄, and HCl was related to activity coeffs. of the acids.

Full paper in Portable Document Format: 283a349.pdf

Chemical Papers 28 (3) 349–354 (1974)