Abstract
From the Tg data for the LiCl-H_2O-C_2H_5OH solutions and aqueous R_4NX solutions (R=CH_3, C_2H_5, n-C_3H_7; X = Cl, Br and NO_3) and the Raman spectra for aqueous KCl and (C_2H_5)_4NCl solutions, it is concluded that hydrophobic interaction plays an improtant role in these solutions (except the KCl solution) even in high salt concentration regions.