Volumetric and Acoustic Properties for Binary Mixtures of Dipropylene Glycol Monopropyl Ether with Alkylamines at Temperatures Between 288.15?K and 308.15?K
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- 作者：Amalendu Pal and Rekha Gaba
- 关键词：n ; Alkylamines ; Density ; Dipropylene glycol monopropyl ether ; Ultrasonic (sound) speed
- 刊名：International Journal of Thermophysics
- 出版年：2009
- 出版时间：June, 2009
- 年：2009
- 卷：30
- 期：3
- 页码：862-882
- 全文大小：405.0 KB
文摘
The densities, ρ, and speeds of sound, u, have been measured as a function of composition for binary liquid mixtures of dipropylene glycol monopropyl ether (DPGMPE) with n-butylamine (BA), dibutylamine (DBA), and tributylamine (TBA) at (288.15, 293.15, 298.15, 303.15, and 308.15) K and atmospheric pressure using an Anton Paar DSA-5000 instrument. The ρ and u values were used to calculate excess molar volumes, V E, deviations from the ideal behavior of the thermal expansion coefficient, α E, and the isentropic compressibilities, Δκ S . Moreover, the apparent molar volume [`(V)]f,i0{\bar{{V}}_{\phi ,i}^0 }, and apparent molar compressibility [`(K)]f,i0{\bar{{K}}_{\phi ,i}^0 }, of the components have been calculated at infinite dilution. The Jouyban–Acree model is used to correlate the experimental values of density and ultrasonic speed at different temperatures.