Experimental Determination of Densities and Refractive Indices of the Ternary Mixture 2-Methyl-2-propanol + Cyclohexylamine plus n-Heptane at T = (303.15 to 323.15) K

Abstract

The experimental data of the tertiary 2-methyl-2-propanol + cyclohexylamine + n-heptane (densities rho and refractive indices nD data) and three binary systems: 2-methy1-2-propanol + cyclohexylamine (n(D) data). 2-methyl-2-propanol + n-heptane (rho and n(D) data), and cyclohexylamine + n-heptane (n(D) data) have been determined. Experimental rho and n(D) measurements have been performed simultaneously, at five temperatures, (303.15, 308.15, 313.15, 318.15 and 323.15) K, and atmospheric pressure, using an Anton Paar DMA 5000 digital vibrating-tube densimeter, with a refractometer Anton Paar RXA 156. Excess molar volumes V-E and deviations of refractive indices Delta n(D) were correlated by the Redlich-Kister equation for binary mixtures and the Nagata-Tamura equation for the ternary mixture.