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Binary ion exchange equilibrium for Ca 2+ , Mg 2+ , K + , Na + and H + ions on amberlite IR‐120
Author(s) -
de Lucas Martínez Antonio,
Cañizares Pablo,
Díaz Jacinto Zarca
Publication year - 1993
Publication title -
chemical engineering and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.403
H-Index - 81
eISSN - 1521-4125
pISSN - 0930-7516
DOI - 10.1002/ceat.270160107
Subject(s) - amberlite , chemistry , enthalpy , aqueous solution , equilibrium constant , ion exchange , mass action law , ion , gibbs free energy , chemical equilibrium , standard enthalpy of formation , ionic bonding , thermodynamics , inorganic chemistry , analytical chemistry (journal) , chromatography , physics , adsorption , organic chemistry
Experimental data are reported for ion exchange equilibria of binary systems on Amberlite IR‐120 resin, at different temperatures and total ionic concentrations in aqueous solutions. These systems exhibit non‐ideal behaviour in both phases, and the equilibrium characterization has been based on the law of mass action, using Wilson and Meisssner, and Kusik equations to correlate the activity coefficients in the resin and aqueous solutions, respectively. Equilibrium constants, standard thermodynamic properties (Gibbs free enthalpy changes, enthalpy and entropy) and Wilson binary parameters were obtained as functions of temperature.