Density, viscosity, speed of sound, excess property and bulk modulus of binary mixtures of gamma-butyrolactone with acetonitrile, dimethyl carbonate, and tetrahydrofuran at temperatures (293.15 to 333.15) K

作者：Chen, Fuchun; Yang, Zhenyu^*; Chen, Zhengyu; Hu, Jinhuo; Chen, Chao; Cai, Jianxi

来源：Journal of Molecular Liquids, 2015, 209: 683-692.

DOI：10.1016/j.molliq.2015.06.041

• Density
• Viscosity
• Speed of sound
• Excess property
• Bulk modulus

In this work, the experimental densities, viscosities, and speed of sound of binary mixtures of gamma-butyrolactone (gamma-GBL) + acetonitrile (ACN) and gamma-GBL + dimethyl carbonate (DMC) have been measured at temperatures (293.15 to 333.15) K and gamma-GBL + tetrahydrofuran (THF) at temperatures (293.15 to 323.15) K in the atmospheric pressure. Excess molar volumes (V-E), viscosity deviations (Delta eta), thermal expansion coefficients (alpha), Bulk Modulus (beta(s)), and the excess Gibbs energy (Delta G(*)(E)) calculated. V-E and Delta eta were fit with the Redlich-Kister equation and optimal fitting parameters are presented. It was found that values of V-E and Delta eta are negative deviations from ideal behaviors for the three binary mixtures. With the concentration of gamma-GBL decreasing, these excess properties for the these mixtures shows more negative deviations from ideal solutions, until a minimum values of V-E are reached at mole fraction of gamma-GBL around 0.5-0.6. Meantime, the negative deviation behaviors can be also observed when the temperature increases. This behavior can be explained by the strong interaction (dipole-dipole interaction and the dispersion force) between different molecules.

• 出版日期2015-9
• 单位南昌大学