Static dielectric constant and relaxation time measurements on binary mixtures of dimethyl sulfoxide with ethanol, 2-ethoxyethanol, and propan-1-ol at 293, 303, 313, and 323 K

Time domain spectroscopy in reflection mode has been used to determine complex reflection coefficient for 2-ethoxyethanol−dimethyl sulfoxide (DMSO), ethanol−DMSO, and propan-1-ol−DMSO mixtures at 293, 303, 313, and 323 K, in the frequency range of 10 MHz to 10 GHz. Further Fourier transform and least-squares fit methods have been used to obtain the complex permittivity, static dielectric constant, and relaxation time.