Dielectric studies of binary mixtures of ethylene glycol mono phenyl ether with 1-butanol at different temperatures

Static permittivity (ε), refractive index (n) and density (ρ) of binary mixtures of ethylene glycol mono phenyl ether (EGMPE) with 1-butanol (1-BuOH) over the entire range of mole fraction and at temperatures (T=303.15, 313.15 and 323.15K) have been measured. From the experimental data, parameters such as excess static permittivity (εE), excess permittivity at optical frequency (ε∞E), effective Kirkwood correlation factor (geff), corrective Kirkwood correlation factor (gf) and Bruggeman factor (fb) have been calculated to obtain qualitative and quantitative information about the complex formation through H-bond in binary system. In order to predict the static permittivity of polar–polar binary mixtures six mixing rules were applied and for refractive index five mixing rule were applied. Experimental results of permittivity (ε) and refractive index (n) are compared with those obtained from theoretical calculations. Excess parameters were fitted to the Redlich–Kister type polynomial equation