Densities and mixing volumes of mixtures of fluorobenzene, α,α,α-trifluorotoluene, tert-butylmethyl ether, and ethanol at temperature 298.15 K and pressure 0.1 MPa

The volumetric properties were evaluated from density data for the binary mixtures of (fluorobenzene + tert-butylmethyl ether), (α,α,α-trifluorotoluene + tert-butylmethyl ether), (tert-butylmethyl ether + ethanol), and the ternary mixtures of (fluorobenzene + tert-butylmethyl ether + ethanol) and (α,α,α-trifluorotoluene + tert-butylmethyl ether + ethanol). The observed densities were obtained by means of a vibrating-tube densimeter at the temperature 298.15 K and the pressure 101 kPa.The excess molar volumes of the ternary mixtures were estimated from binary solution data using several empirical equations with mean standard deviation less than 0.03 cm3·mol-1. Stable chemical cross-associations among the molecules forming the mixtures were revealed.

► We report mixing volumes data of binary and ternary systems of fluorobenzene, trifluorotoluene, tert-butylmethyl ether, and ethanol. ► Observed and calculated data agreed to 0.2% for binary and 1% for ternary systems. ► Ternary mixtures dominated by 0.72% contraction for fluorobenzene and 0.1% relaxation for trifluorotoluene systems