Abstract

The excess parameters studies in the microwave frequency region (X-band) on complex dielectric permittivity for the binary mixture are reported. The method employed adjustable plunger cavity technique. The values of dielectric permittivity (ε'), dielectric loss (ε") have been experimentally determined for binary liquid mixture of 2-Chloroaniline+Ethylene glycol (2CA+EG) at 10.985 GHz microwave frequency at 23.8 ⁰C. The values of ε' and ε" have been used to evaluate the loss tangent (tanδ), molar polarization (P₁₂) activation energy (Ea) and excess permittivity (Δε";), excess dielectric loss (Δε";), excess molar polarization (ΔP₁₂), excess activation energy (ΔEa), excess refractive index (ΔRI) and excess viscosity (Δη) of viscous flow have also been estimated. These parameters have been used to explain the formation 2:1 complex in the system.

Keywords

Excess dielectric parameters, Binary mixture, Molar polarization, Intermolecular interaction