Volumetric Properties of Binary Mixtures of N-Ethylformamide with Tetrahydropyran, 2-Pentanone, and Propylacetate from (293.15 to 313.15) K

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• 作者：Aleksandar Nikoli膰 ; Branislav Jovi膰 ; Milan Vrane拧 ; Sanja Do啪i膰 ; Slobodan Gad啪uri膰
• 刊名：Journal of Chemical & Engineering Data
• 出版年：2013
• 出版时间：May 9, 2013
• 年：2013
• 卷：58
• 期：5
• 页码：1070-1077
• 全文大小：291K
• 年卷期：v.58,no.5(May 9, 2013)
• ISSN：1520-5134

文摘

Densities of binary liquid mixtures of N-ethylformamide (NEF) with tetrahydropyran (THP), 2-pentanone (P), and propylacetate (PA) were measured at temperatures from (293.15 to 313.15) K and at atmospheric pressure over the whole composition range. Excess molar volumes, V^E, have been calculated from the experimental densities and were fitted to the Redlich鈥揔ister polynomial equation. Investigated binary systems show negative excess molar volumes over the entire composition and temperature ranges. For all studied binary mixtures V^E values become more negative as the temperature increases. Other volumetric properties, such as thermal expansion coefficients, partial molar volumes, apparent molar volumes, and partial molar excess volumes, have been calculated, too.