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Abstract  

The complex formation of Ag+ with polyether 18-crown-6 (18C6) and their solvation have been studied using calorimetric and potentiometric methods in H2O-EtOH solvents in wide range of ethanol concentration. The standard enthalpies of dissolution AgNO3, AgClO4 and 18C6 in aqueous-ethanol solvents are obtained. The stability of a complex [Ag18C6]+ grows with increasing the EtOH content a solvent. Using the method based on the thermodynamic characteristics of solvation of metal-ion, ligand and complex-ion the interpretation of the results has been given.

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-ion (1.3 mol kg −1 solution) was put in ampule. After ampule breaking a glycine-ion concentration was 1.5 ÷ 1.8 times more than silver(I) ion concentration. In this case total mixing heat of aqueous solution of NaGly and HGly with aqueous

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