Molecular interactions of (ionic liquid butylammonium methanoate plus alcohols) at several temperatures. Part II: sec-Butylammonium methanoate (S4Met)

被引：1

作者：

Hoga, Heloisa Emi ^{[1
]}

Fernandes, Robert Lunkez ^{[1
]}

Olivieri, Gustavo Vieira ^{[1
]}

Torres, Ricardo Belchior ^{[1
]}

机构：

[1] Ctr Univ FEI, Dept Engn Quim, Ave Humberto Alencar Castelo Branco,3972, BR-09850901 Sao Bernardo Do Campo, SP, Brazil

来源：

JOURNAL OF CHEMICAL THERMODYNAMICS | 2023年 / 178卷

基金：

巴西圣保罗研究基金会;

关键词：

Thermodynamic properties; Binary mixtures; Ionic liquids; Alcohols; Spectroscopy; Modeling; BINARY-MIXTURES; THERMOPHYSICAL PROPERTIES; THERMODYNAMIC PROPERTIES; VOLUMETRIC PROPERTIES; N-OCTANE; ETHANOL; DENSITIES; SOUND; SPEED; VISCOSITIES;

D O I：

10.1016/j.jct.2022.106970

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Volumetric and acoustic properties were obtained by density (rho) and speed of sound (u) experimental values for the binary liquid systems containing the protic ionic liquid (IL) sec-butylammonium methanoate (S4Met) + alcohols (ethanol, 1-propanol, 1-butanol and 1-pentanol) over the whole composition range at different temperatures (293.15-313.15) K and ambient pressure (p = 92.3 kPa). A neutralization reaction was carried out under controlled temperature to synthesize S4Met, which underwent spectroscopic analyses to guarantee its formation. All the excess properties, namely excess molar volume, VEm, excess partial molar volumes,VEi , and deviation in isentropic compressibility,Delta kappa S, presented negative values. Other volumetric properties such as partial molar volumes,Vi, apparent molar volumes, V phi i and infinite dilution volumes,Vi infinity, were determined. In addition to the thermodynamic approach, spectroscopy techniques essentially 1H NMR, 13C NMR, FTIR were useful in order to elucidate intermolecular interactions among the species in solutions. Lastly, the Peng-Robinson-Stryjek-Vera equation of state (PRSV EOS) was used to correlate the excess molar volumes.

引用

页数：16