Excess volumes of mixing and excess enthalpies of mixing of n-butyl chloride with aromatic hydrocarbons at 298.15 K

Abstract

The excess volumes and enthalpies of mixing of binary mixtures of n-butyl chloride with benzene, toluene, o-xylene, m-xylene and p-xylene have been measured experimentally over the whole composition range at 298.15 K. The data have been analysed qualitatively in terms of the specific interactions of electron donor-acceptor type and of the disruption of molecular order in the pure components. Flory's theory correctly predicts the sign and to an acceptable extent the magnitude of the H E values although the agreement for V E values is not good. However, the Graph theory correctly predicts the sign as well as the magnitude of the V E and H E values.