Studies of Excess Thermodynamic Properties of Binary Mixtures of Dibutylamine with 2-Methyl-1-Propanol, 2-Propanol, and 1-Butanol at Different Temperatures

IF 2 3区工程技术 Q3 CHEMISTRY, MULTIDISCIPLINARY

Journal of Chemical & Engineering Data Pub Date : 2025-01-15 DOI:10.1021/acs.jced.4c0051210.1021/acs.jced.4c00512

Krishan Kumar*, Likhish Dhingra and Gyan Prakash Dubey*,

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Abstract

To comprehend the molecular interactions between amines and alcohols, the present section reports our measurements of densities (ρ), speeds of sound (u), and viscosities (η) of dibutylamine (DBA) with 2-methyl-1-propanol, 2-propanol, and 1-butanol over the entire composition range at different temperatures and atmospheric pressure. Redlich–Kister polynomial equation has been used for the correlation of excess properties with composition. The negative value obtained for excess molar volume (V_m^E) and excess molar isentropic compressibility (K_S,m^E) shows the presence of strong molecular interactions. The calculated apparent molar volume V_φ,1 and apparent molar compressibility K_φ,1 predicts the volume contraction of the solution with the addition of alcohol to DBA. The results of V_m^E have also been confirmed with the help of Prigogine-Flory-Patterson theory. The viscosity data have also been correlated by using various semiempirical relations of viscosity.

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不同温度下二丁胺与2-甲基-1-丙醇、2-丙醇和1-丁醇二元混合物的超热力学性质研究

为了理解胺和醇之间的分子相互作用，本节报告了我们在不同温度和大气压下测量二丁胺（DBA）与2-甲基-1-丙醇、2-丙醇和1-丁醇在整个组成范围内的密度（ρ）、声速(u)和粘度（η）。利用Redlich-Kister多项式方程求解了过量性质与组分的关系。过量摩尔体积（VmE）和过量摩尔等熵压缩率（KS,mE）的负值表明存在强的分子相互作用。计算的表观摩尔体积Vφ，1和表观摩尔压缩率Kφ，1预测了乙醇加入DBA后溶液的体积收缩。VmE的结果也在Prigogine-Flory-Patterson理论的帮助下得到了证实。粘度数据也用粘度的各种半经验关系进行了关联。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Chemical & Engineering Data 工程技术-工程：化工

CiteScore

5.20

自引率

19.20%

发文量

324

审稿时长

2.2 months

期刊介绍： The Journal of Chemical & Engineering Data is a monthly journal devoted to the publication of data obtained from both experiment and computation, which are viewed as complementary. It is the only American Chemical Society journal primarily concerned with articles containing data on the phase behavior and the physical, thermodynamic, and transport properties of well-defined materials, including complex mixtures of known compositions. While environmental and biological samples are of interest, their compositions must be known and reproducible. As a result, adsorption on natural product materials does not generally fit within the scope of Journal of Chemical & Engineering Data.