Dielectric Behaviour of Binary Mixture of 2-Chloroaniline with 2-Methoxyethanol and 2-Ethoxyethanol

Bhupesh G. Nemmaniwar, Namdeo V. Kalyankar, Pothaji L. Kadam

Abstract


Densities, viscosities, refractive indices, dielectric constant (ε') and dielectric loss (ε'') of 2-chloroaniline (2CA) + 2-methoxyethanol (2ME) and 2-chloroaniline (2CA) + 2-ethoxyethanol (2EE) for different mole fractions of 2-chloroaniline in binary mixture have been measured at single microwave frequency 10.985 GHz at 300C by Surber method using microwave X-band. The values of dielectric parameters (ε' and ε'' )  have been used to evaluate the molar polarization (P12) loss tangent (tanδ), viscosity (η), activation energy (Ea), excess permittivity (Δε'), excess dielectric loss (Δε''), excess viscosities (Δη), excess polarization (ΔP12) and excess activation energy (ΔEa)  have also been estimated. These parameters have been used to explain the formation of complexes in the system. It is found that dielectric constant (ε'), dielectric loss (ε''), loss tangent (tanδ), molar polarization (P12) varies non-linearly but activation energy (Ea) , viscosity (η) ,density (ρ), and refractive index (n) varies linearly with increasing mole fraction in binary mixture of 2-chloroaniline (2-CA) + 2-methoxyethanol (2-ME) and 2-chloroaniline (2-CA) + 2-ethoxyethanol (2-EE). Hence, solute-solvent molecular associations have been reported.

 


Keywords


molecular interaction; polar liquids; binary mixture; excess parameters

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Orbital: The Electronic Journal of Chemistry (e-ISSN 1984-6428) is a quarterly scientific journal published by the Institute of Chemistry of the Universidade Federal de Mato Grosso do Sul, Brazil. Orbital is a peer-reviewed, open-access journal.