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Insights into non-ideal behaviour of benzyl alcohol with (C2-C4) carboxylic acids through volumetric, ultrasonic and ATR-FTIR spectroscopic studies
Physics and Chemistry of Liquids ( IF 1.2 ) Pub Date : 2020-08-18
P. Bhanuprakash, Ramesh L. Gardas, R. Prathibha, K. Sivakumar, N.V.V. Jyothi

In the present work, experimental density (ρ) and speed of sound (u) data for the binary mixtures of benzyl alcohol with acetic acid, propionic acid, and n-butyric acid have been reported over the complete range of mole fraction at 298.15 K ≤ T ≤ 313.15 K. Excess volumes (VE ), excess isentropic compressibilities (κs E ), excess partial molar volumes ( V i E ), and excess partial molar volumes at infinite dilution ( V i E , ) have been computed from the experimental data. The excess thermodynamic properties are found to be negative over the entire range of composition at the investigated temperatures. The temperature dependence of the excess thermodynamic properties has been investigated. All the excess functions are correlated with the Redlich-Kister equation. Further, attenuated total reflection Fourier transform infrared (ATR-FTIR) spectra for the studied binary solutions have been recorded at the equimolar composition to evaluate the extent of cross-association between component molecules through intermolecular hydrogen bonding.



中文翻译:

通过体积,超声和ATR-FTIR光谱研究了解苯甲醇与(C2-C4)羧酸的非理想行为

在本工作中,已经报道了在298.15 K的摩尔分数的整个范围内,苯甲醇与乙酸,丙酸和正丁酸的二元混合物的实验密度(ρ)和声速(u)数据。 ≤:T≤313.15 K.过量体积(V ë ),等熵过量可压缩(κ小号 ë ),过量偏摩尔体积( V 一世 Ë ),以及无限稀释下的过量部分摩尔体积( V 一世 Ë )是根据实验数据计算得出的。发现在所研究的温度下,在整个组成范围内,过量的热力学性质为负。已经研究了过量热力学性质的温度依赖性。所有多余的函数都与Redlich-Kister方程相关。此外,已研究的二元溶液的衰减全反射傅立叶变换红外(ATR-FTIR)光谱已记录在等摩尔组成下,以评估通过分子间氢键形成的组分分子之间的缔合程度。

更新日期:2020-08-18
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