Studies on Systems of Salts and Mixed Solvents. XXVI. Solubility and Solvation Behaviour of Aluminium(III) Chloride in Mixed Aqueous Organic Solvents

Using sections of 25°C solubility isotherms of 14 systems of the type AlCl₃? H₂O-organic solvent the investigations are intended to illustrate the possibility of qualitative interpretation of the solubility data on the basis of empirical solvent parameters. Within the group of solvents according to the Kolthoff classification a largely analogous influence on the solubility of aluminium chloride has been noticed. Similarities result from the typical influence on the solvation state of AlCl₃. The results obtained from the solubility investigations and parageneses of the solid phases correlate with the results of spectroscopic investigations. Solid phases so far not observed are reported.