METHOD FOR CALCULATION OF ION-EXCHANGERS POTENTIOMETRIC TITRATION CURVES

Neutralisation of ion exchangers in hydrogen or hydroxylic form is des cribed as a particular case of ion exchange of the mentioned ions with a counter-ion accompanied by the neutralisation reaction. Using deriv ed previously dependence of ion exchange apparent equilibrium constant of ionio composition in ion exchangers, a set of equation was obtaine d connecting the pH and external electrolyte concentration with the de gree of neutralisation via the apparent equilibrium constant. A method for calculation of ion exchangers potentiometric titration curves was suggested and proved to give high accuracy. It is illustrated with a carboxylic ion exchanger titration.