Thermophysical properties for diethylene glycol plus nitrobenzene and triethylene glycol plus (chloro-, bromo-, nitro-) benzene systems at different temperatures

The densities, viscosities, sound speeds, and relative permittivities for four binary mixtures of glycols+organic solvents that are miscible over the complete composition range, namely, diethylene glycol (DEG)+nitrobenzene and triethylene glycol (TEG)+chlorobenzene, +bromobenzene, and +nitrobenzene have been measured at atmospheric pressure and at temperatures from 298.15 to 313.15 K. The excess molar volumes are calculated and fitted with a Redlich-Kister type equation. The qualitative analysis of excess molar volumes revealed that the structure-making effects probably in the form of weak Cl center dot center dot center dot H-O hydrogen bonding, Cl center dot center dot center dot O electron acceptor-donor interactions, and interstitial accommodation of chlorobenzene in associate structures of triethylene glycol, etc. are predominant in these mixtures.