31-39
Dielectric relaxation and dipole moment of binary mixture of 2, 3-dichloroaniline and 2-ethoxyethanol in 1, 4-dioxane solution using microwave absorption data
Authors: Bhupesh G Nemmaniwar
Number of views: 703
Dielectric constant () and dielectric loss () of 2,3-Diachloroaniline (2,3-DCA),2-Ethoxyethanol (2-EE) and binary mixtures of 2,3-DCA+2-EE in 1,4-dioxane solutions were calculated by using standard standing microwave X-band technique were measured at microwave frequency 10.985 GHz at different temperatures 200C, 300C, 400C and 500C using Gopala Krishna’s single frequency concentration variation method. The measured values of and have been used to evaluate dipole moment (µ) and relaxation time (τ). The dielectric relaxation process of binary mixtures containing 71% mole fraction of 2,3-DCA were calculated at the respective given temperatures. On the basis of observations, it is found that the dielectric relaxation process can be treated as the rate process like the viscous flow process. Non-linear variation of relaxation time with molar concentration of 2,3-DCA in the whole concentration range of the binary mixture indicates the existence of solute-solute and solute–solvent type of molecular association were predicted. Dipole moment (µ) of 2,3-DCA and 2-EE non linearly decreases with rise in temperature. Excess inverse relaxation time (1/τ)e calculated at different temperatures are found to be positive.
Today
Yesterday
This week
This month
All days
