COMPLEX FORMATION BETWEEN ALKALI AND ALKALINE EARTH CATIONS AND CROWN ETHERS AND CRYPTANDS IN AQUEOUS SOLUTION

Abstract
The complexation of alkali and alkaline earth cations in aqueous solution by crown ethers, diaza crown ethers and cryptands has been studied using pH-metric, calorimetric and competitive calorimetric titrations. Use of different experimental techniques makes it possible for the first time to obtain a large number of stability constants and thermodynamic parameters for complexation between these cations and ligands.