MICROWAVE DIELECTRIC RELAXATION STUDIES OF TERNARY LIQUID MIXTURES OF DIOCTYL PHTHALATE AND DIETHYL PHTHALATE WITH ISOBUTANOL

M.Subramanian; RM. Uma Maheshwari; K. Sathish kumar

Volume : VIII, Issue : III, March - 2018

MICROWAVE DIELECTRIC RELAXATION STUDIES OF TERNARY LIQUID MIXTURES OF DIOCTYL PHTHALATE AND DIETHYL PHTHALATE WITH ISOBUTANOL

M. Subramanian, Rm. Uma Maheshwari, K. Sathish Kumar

Abstract :

The molecular structure and molecular forces in liquids and solution in particular have been investigated by dielectric relaxation studies. The nature and strength of the molecular interactions have been established as the main cause for the chemical behavior of compounds. The dielectric behavior of dioctyl phthalate and diethyl phthalate with isobutanol has been studied at microwave frequency 9.36 GHz at different temperatures 303K, 313K and 323K. Different dielectric quantities like dielectric constant (ε’), dielectric loss (ε’’), static dielectric constant (ε₀) and dielectric constant at optical frequency (ε_∞) have been determined. The relaxation time (τ) has been calculated by both Higasi’s method and Cole–Cole method. The complex system investigated shows the maximum relaxation time values at temperatures by both Higasi’s method and Cole–Cole method. < clear="all" style="page–eak–before:always;mso–eak–type:section–eak" />