Solubilities of benzene, toluene and diphenyl in the t-butyl alcohol plus water mixtures and hydrophobic interaction

The solubilitices of benzene, toluene and diphenyl in mixed solvents of t-b utyl alcohol (TBA) and water at 283.15, 288.15, 293.15 and 298.15 K have be en determined by spectrophotometry. The mole fraction of TEA [x (TBA)] in t he mixed solvent are 0.000, 0.010, 0.020, 0.030, 0.040, 0.045, 0.050, 0.050 , 0.080 and 0.100, respectively. The standard Gibbs energies of solution of benzene, toluene and diphenyl in the mixed solvent have also been calculat ed based on the solubility data. The hydrophobic interactions (HI) for the pairs of benzene-benzene, methane-benzene and methane-methane in the mixed solvent were calculated and discussed.