Abstract
The complex permittivity spectra of dimethylene chloride with ethanol were determined in the frequency range of 10 MHz to 20 GHz using time domain reflectometry (TDR) in the temperature range 15°C to 45°C for 11 different concentrations of the system. The dielectric parameters viz. static dielectric constant ( ϵ 0) and relaxation time (τ) have been obtained by the least squares fit method. Excess properties and Kirkwood correlation factor of the mixtures have been determined. In the mixture excess permittivity is found to be positive, and inverse relaxation time is negative. Activation energy in the mixture is also determined. The static dielectric constants for the mixtures have been fitted with the modified Bruggeman model.
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