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Temperature dependent dielectric relaxation studies of 2-nitrotoluene-dimethyl sulfoxide mixture using time domain reflectometry

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Title Temperature dependent dielectric relaxation studies of 2-nitrotoluene-dimethyl sulfoxide mixture using time domain reflectometry
 
Creator Dhage, H M
Deshmukh, A R
Birajdar, S S
Kumbharkhane, A C
 
Subject Static dielectric constant
Relaxation time
Excess parameters
Kirkwood correlation factor
Thermodynamic parameters
Time domain reflectometry
 
Description 1153-1158
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 20oC to 5oC. 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.
 
Date 2022-11-11T10:26:05Z
2022-11-11T10:26:05Z
2022-11
 
Type Article
 
Identifier 2583-1321 (Online); 0019-5103 (Print)
http://nopr.niscpr.res.in/handle/123456789/60830
https://doi.org/10.56042/ijc.v61i11.61874
 
Language en
 
Publisher NIScPR-CSIR, India
 
Source IJC Vol.61(11) [Nov 2022]