Densities and Viscosities for Binary Liquid Mixtures of n-Undecane + 1-Heptanol, 1-Octanol, 1-Nonanol, and 1-Decanol from 283.15 to 363.15 K at 0.1 MPa

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• 作者：Adriana Guzmán-López ; Gustavo A. Iglesias-SilvaFátima Reyes-García ; Alejandro Estrada-Baltazar ; Mariana Ramos-Estrada
• 刊名：Journal of Chemical & Engineering Data
• 出版年：2017
• 出版时间：February 9, 2017
• 年：2017
• 卷：62
• 期：2
• 页码：780-795
• 全文大小：389K
• ISSN：1520-5134

文摘

This paper presents densities and viscosities of binary mixtures of n-undecane with 1-alcohols with carbon atoms from C₇ to C₁₀ from 283.15 to 363.15 K at 0.1 MPa. Densities are measured using a vibrating tube densimeter, while viscosities are from a pellet microviscometer. Excess molar volumes and viscosity deviations are calculated from the experimental data. The excess molar volumes present positive deviations for the binary mixtures with 1-heptanol, 1-octanol, and 1-nonanol. The excess molar volumes of n-undecane + 1-decanol present negative deviations at lower temperatures. The viscosity deviations show negative deviations from ideality over the entire temperature range. Also we present a correlation for the kinematic viscosity based upon the activation Gibbs energy.