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Title: Dielectric relaxation of acetonitrile in benzene solution from microwave absorption studies
Authors: Thakur, Nagesh
Sharma, D R
Keywords: Acetonitrile;Benzene;Microwave absorption;Dielectric relaxation
Issue Date: Oct-2003
Publisher: NISCAIR-CSIR, India
Abstract: The dielectric constant Ɛ' and dielectric loss Ɛ" for dilute solutions of acetonitrile (CH3CN) in benzene have been measured at 10.04 GHz at different temperatures (25, 30, 35 and 40°C by using standard microwave techniques. Following the single frequency concentration variational method suggested by Gopala Krishana, the dielectric relaxation time (τ) and dipole moment (µ) at various temperatures have been calculated. It is found that, dielectric relaxation process can be treated as the rate process, just like the viscous flow. Based upon above studies, monomer structure for CH3CN in benzene solution has been inferred. The presence of solute-solvent association in benzene solution has been proposed. Energy parameters for the dielectric relaxation process of CH3CN in benzene at different temperatures have been calculated and compared with the corresponding energy parameters for viscous flow.
Page(s): 806-809
ISSN: 0975-1041 (Online); 0019-5596 (Print)
Appears in Collections:IJPAP Vol.41(10) [October 2003]

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