Abstrait

A New Equation To Reproduce The Enthalpies Of Transfer Of Tetrabutylammonium Bromide From Water To Aqueous Methanol, Ethanol, Propan-1-Ol And 1,4-Dioxane Systems At 298.15K

G.Rezaei Behbehani

Enthalpies of transfer of tetrabutylammonium bromide from water to aqueous methanol, ethanol, propan-1-ol and 1, 4-dioxane systems are reported and analysed in terms of the old and new solvation theory. It was found that a previous equation could not reproduce these data over the whole range of solvent compositions. Using the new solvation theory to reproduce the enthalpies of transfer shows excellent agreement between the experimental and calculated data over the entire range of solvent compositions. The analyses show that the solvation of tetrabutylammonium bromide preferentially solvated by water the all considered solvent mixtures. The extent to which tetrabutylammonium bromide disrupts the solvent-solvent bonds increases systematically from aqueous methanol to propan-1-ol.