Study of solute solvent interaction of nitrobenzene with DGME (diethylene glycol monomethyl ether) through dielectric relaxation study

P. Maheshmalkar et al.,

ıMicrowave Research Laboratory, Department of Physics, Dr. Babasaheb Ambedkar Marathwada University, Aurangabad - 431 004 (India). ²Milliya College Beed - 431 122 (India). ³Department of Computer Science & IT Dr. Babasaheb Ambedkar Marathwada University, Aurangabad - 431 004 (India).

Received on August 08, 2009 and accepted on October 15, 2009

ABSTRACT

Dielectric relaxation measurements for binary mixtures of Diethylene Glycol Monomethyl Ether or 2(2-methoxyethoxy ethanol) with nitrobenzene have been carried out over the entire range of concentration, using Time Domain Reflectometry (TDR) at 288K over the frequency range from 10MHz-20GHz. Bilinear calibration method is used to obtain complex permittivity e*(w) from complex reflection coefficient r*(e). The complex permittivity, excess permittivity(eE)excess inverse relaxation time,(1/t)E Bruggeman factor (fB ), Kirkwood correlation factor (geff,) are also calculated to study solute -solvent interactions.

Keywords : Time domain Reflectometry; nitrobenzene; 2(2-methoxyethoxy ethanol); Excess parameters;