Thermodynamic Properties of the Binary and Ternary Systems Containing N-Formylmorpholine, Methanol, Benzene and Toluene at 298.15 K

Abstract

Excess molar volumes and the deviations in molar refraction of the N-formylmorpholine (NFM) + methanol, methanol+benzene, NFM +benzene, NFM +toluene, methanol + toluene binary systems and also for the ternary systems of NFM + methanol + benzene and NFM + methanol + toluene have been determined at 298.15 K and at atmospheric pressure, by measuring densities and refractive indices over the entire range of composition. These derived data of binary and ternary mixtures were fitted to Redlich-Kister and Cibulka equations for the binary and ternary systems. The ternary data were also compared with the predicted values using the binary contribution models of Tsao-Smith, Kohler and Radojkovicˇ.

Sorption equilibria and diffusion of toluene, methanol, and cyclohexane in/through elastomers

“…Binary methanol + cyclohexane and toluene + cyclohexane mixtures show positive V E at all concentrations, probably due to breakup of alcohol structure as a result of the difficult accommodation of the larger cyclohexane molecule in the first case or to nonspecific repulsive interactions between the species in the second case. However, binary methanol + toluene mixtures show small negative V E , suggesting the specific dipole–dipole interactions between the components. The calculated ternary excess volumes for the mixtures under study show positive deviations from ideal behavior, with a maximum V E for mixture 1 and the smallest value of V E for mixture 3.…”

Density, viscosity, excess molar volume and viscosity deviation for [chloroform (1) + di-isopropyl- ether(2) + 1-propanol (3)] ternary system at 298.15 K.

“…Some of these equations adjust the excess properties from those of the binary systems [15][16][17] . There are several articles in the literature [17][18][19][20] that use these proposals. Also in some ternary systems the applicability of associated solution models was evaluated [21] .…”

Density, viscosity, excess molar volume and viscosity deviation for [chloroform (1) + methanol (3)] binary system and [chloroform (1) + di-isopropylether (2) + methanol (3)] ternary system at 298.15 K

“…Some of these equations predict the excess properties from those of binary systems [15][16][17] . There are several papers in the literature [17][18][19][20] in which these settings are tested. The results are varied and the best setting depends on the type of system.…”