Solid−Liquid Phase Equilibria of 1-Decanol and 1-Dodecanol with Fragrance Raw Materials Based on Cyclohexane

Abstract

The solid−liquid phase equilibria (SLE) of binary mixtures containing 1-decanol or 1-dodecanol and fragrance raw materials based on cyclohexane were investigated. The systems {1-decanol or 1-dodecanol (1) + cyclohexyl carboxylic acid (CCA) or cyclohexyl acetic acid (CAA) or cyclohexyl acetate (CA) or 2-cyclohexyl ethyl acetate (2CEA) or 2-cyclohexyl ethanol (2CE) (2)} have been measured by a dynamic method over a wide range of temperature from (250 to 300) K and ambient pressure. For all systems, SLE diagrams were detected as eutectic mixtures with complete miscibility in the liquid phase. The experimental data were correlated by the Wilson and the nonrandom two-liquid NRTL equation, utilizing parameters derived from the solid−liquid equilibrium. The average root-mean-square deviations of the solubility temperatures were (0.33 and 0.31) K for the Wilson and the NRTL equations, respectively.