Temperature dependent dielectric relaxation studies of 2-nitrotoluene-dimethyl sulfoxide mixture using time domain reflectometry
By: Dhage, H. M
.
Contributor(s): Deshmukh, A. R.
Publisher: New Delhi CSIR 2022Edition: Vol.61, Nov.Description: 1153-1158p.Subject(s): GENERAL CHEMISTRYOnline resources: Click here
In:
Indian journal of chemistry (Section B)Summary: The dielectric relaxation measurements of 2-nitrotoluene (2-NT) with dimethyl sulfoxide (DMSO) for 11 different
concentrations have been carried out in the frequency range from 10 MHz to 50 GHz using time domain reflectometry
method. In this frequency range, a dielectric relaxation spectrum of 2-NT-DMSO mixtures shows Debye type relaxation
behaviour. The static dielectric constant, dielectric relaxation time, Kirkwood correlation factor, excess dielectric properties
have been determined from 20 oC to 5 oC. The excess dielectric and Kirkwood correlation factor gives the information about
formation and orientation of electric dipoles in the mixture. As the concentration of 2-NT in DMSO increases, dipole
changes its orientation from anti-parallel to parallel. The thermodynamic parameters (enthalpy, entropy and Gibbs free
energy) have been determined from the relaxation time using least squares fit method.
| Item type | Current location | Call number | Status | Date due | Barcode | Item holds |
|---|---|---|---|---|---|---|
Articles Abstract Database
|
School of Pharmacy Archieval Section | Not for loan | 2023-0634 |
The dielectric relaxation measurements of 2-nitrotoluene (2-NT) with dimethyl sulfoxide (DMSO) for 11 different
concentrations have been carried out in the frequency range from 10 MHz to 50 GHz using time domain reflectometry
method. In this frequency range, a dielectric relaxation spectrum of 2-NT-DMSO mixtures shows Debye type relaxation
behaviour. The static dielectric constant, dielectric relaxation time, Kirkwood correlation factor, excess dielectric properties
have been determined from 20 oC to 5 oC. The excess dielectric and Kirkwood correlation factor gives the information about
formation and orientation of electric dipoles in the mixture. As the concentration of 2-NT in DMSO increases, dipole
changes its orientation from anti-parallel to parallel. The thermodynamic parameters (enthalpy, entropy and Gibbs free
energy) have been determined from the relaxation time using least squares fit method.
Click on an image to view it in the image viewer
There are no comments for this item.