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Dielectric Relaxation Studies of Ternary Liquid Mixtures of Dimethyl Phthalate with Triethylamine in the Microwave Region

A. Mushtaq Ahmed Khan, M.Subramanian

The molecular structure and molecular forces in liquids and solutions 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 Triethylamine with Dimethyl Phthalate has been studied at microwave frequency 9.36 GHz at different temperatures 303K, 308K and 313K. Different dielectric quantities like dielectric constant (ε′), dielectric loss (ε″), static dielectric constant (ε0 ) and dielectric constant at optical frequency (εα) 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.