Volumetric properties of binary mixtures of N-ethylformamide with tetrahydrofuran, 2-butanone, and ethylacetate from T = (293.15 to 313.15) K

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• 作者：Slobodan Gad啪uri膰p> ; p>p>slobodan.gadzuric@dh.uns.ac.rsp> ; Aleksandar Nikoli膰 ; Milan Vrane&scaron ; Branislav Jovi膰 ; Marko Damjanovi膰 ; Sanja Do啪i膰
• 关键词：Excess molar volumes ; Apparent molar volumes ; Thermal expansitivity ; N-ethylformamide ; Tetrahydrofuran ; 2-Butanone ; Ethylacetate ; Hydrogen bonding
• 刊名：Journal of Chemical Thermodynamics
• 出版年：2012
• 期刊代码：123_00219614
• 类别：ch
• 出版时间：August, 2012
• 卷：51
• 期：Complete
• 页码：37-44
• 文件大小：455 K

摘要

Densities of binary liquid mixtures of N-ethylformamide (NEF) with tetrahydrofuran (THF), 2-butanone (B), and ethylacetate (EA) were measured at temperatures from (293.15 to 313.15) K and at atmospheric pressure over the whole composition range. Excess molar volumes, Vp>Ep>, have been obtained from values of the experimental density and were fitted to the Redlich-Kister polynomial equation. The Vp>Ep> values for all three mixtures are negative over the entire composition and temperature ranges. The Vp>Ep> values become more negative as the temperature increases for all binary mixtures studied. Other volumetric properties, such as isobaric thermal expansion coefficients, partial molar volumes, apparent molar volumes, partial molar excess volumes and excess thermal expansions have been calculated.