Densities and Excess Molar Volumes of 2-Butanol + Cyclohexanamine + Heptane and 2-Butanol + n-Heptane at Temperatures between (288.15 and 323.15) K

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The density ρ and excess molar volumes V E for 2-butanol + cyclohexanamine + heptane and 2-butanol + heptane have been determined at temperatures of (288.15, 293.15, 298.15, 303.15, 308.15, 313.15, 318.15, and 323.15) K at a pressure of 0.1 MPa with an Anton Paar DMA 5000 vibrating tube densimeter. Excess molar volumes V E were determined and fit to the Redlich−Kister equation for the binary mixture and the Nagata−Tamura equation for the ternary mixture.