Abstract
Liquid–liquid equilibria of the ternary systems {cyclohexane + benzene + N-methyl formamide} and {cyclohexene + benzene + N-methyl formamide} were measured at temperatures of (288.15, 298.15, and 308.15) K. The results were predicted using the UNIQUAC equation with dimensionless parameters (τij) which were related to linear functions of the reciprocal of temperature. The total average deviations of three temperatures between the predicted and experimental values were estimated as 0.92% for the former system, and as 0.87% for the latter one.
