Excess molar volume and viscosity study for the ternary system tetrahydrofuran (1) + 1-chlorobutane (2) + 1-butanol (3) at 283.15, 298.15 and 313.15 K

MIGUEL POSTIGO; ALEJANDRA MARIANO; LELIA MUSSARI; ALBERTO CAMACHO; JOSÉ URIETA

FLUID PHASE EQUILIBRIA

Elsevier

Año: 2003 vol. 207 p. 193 - 207

0378-3812

Densities, ρ, and viscosities, η, for ternary liquid mixtures of tetrahydrofuran (1)+ 1-chlorobutane (2)+ 1-butanol (3) have been measured as a function of composition at temperatures of 283.15, 298.15 and 313.15Kand atmosphericpressure over the full range of composition. From theses results excess molar volume, VE, viscosity deviations, η,from mole fraction average, and excess free energies of activation of viscous flow, G∗E, have been calculated. Excess molar volume, viscosity deviations and excess free energies of activation of viscous flow were fitted to Cibulka, Singh and Nagata equations. The results are discussed in terms of the molecular interaction between the components of the mixtures. Excess molar volumes and deviations of the viscosities for this ternary system were predicted from binary contributions using geometrical solution models, Tsao?Smith, Jacob?Fitzner, Kholer, Rastogi and Radojkovic. Additionally, experimental results are compared with those obtained by applying group-contribution method proposed by Wu.