Dipolar Interaction in Binary Polar Systems-a Dielectric Study of Acetyl Acetone (HAA) and DI-ISO Butyl Ketone (DIBK) with Some Monosubstituted Benzenes

Abstract

Experimentally measured values of dielectric constant (ε) at a frequency of 455 kHz and temperature 303.16K in binary polar mixture of acetyl acetone and of di-iso-butyl ketone in chlorobenzene, bromobenzene and toluene have been used to compute the mutual correlation factor (g_ab ), the excess molar polarization (ΔP) and the Gibb's free energy of mixing (ΔG_ab ) using Winkelmann-Quitzsch equations. The results are utilised in interpreting the molecular association and hence the nature of clusters involving unlike molecules.

Key Words:

• Dielectric constant
• mutual correlation factor
• excess molar polarization