Pak T. The Solubility and Solvation of Alkali Metals and Tetraalkilammonium Perchlorates in Mixed Water - Dipolar Aprotic Solvents.

The objects of research are potassium, rubidium, caesium, tetramethyl and tetraethyl ammonium perchlorates in mixed solvents water-acetone, water-methylethylketone, water- dimethylformamide, water-dimethylsulfoxide, water-acetonitrile at 298.15 K. The aim of research is the determination of relationship between mixed solvent nature and contents, ion nature and radius, temperature on the one hand and solubility and solvation of alkali metals perchlorates in water- dipolar aprotic solvent mixtures on the other hand. The methods of research are gravimetry of solubility, conductance measuring and derivatography. The linear dependence between solubility logarithm and reverse quantity of dielectric permeability, the linear dependence between Gibbs energy transfer and reverse quantity of ion radius and the linear dependence between cavity formation and surface tension of mixed solvent for large tetraalkilammonium ions are obtained.