Investigation of Nonideal Mixing Behavior in Linalool and 1-Alkanol Mixtures: Thermodynamics and Viscosity Modeling Approaches

IF 2 3区 工程技术 Q3 CHEMISTRY, MULTIDISCIPLINARY
Mohammad Almasi*, 
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Abstract

The liquid densities and viscosities of linalool (LL) combined with 1-alkanols (1-butanol to 1-heptanol) were studied across a temperature range of 293.15–323.15 K. The experimental results revealed a negative deviation from ideal behavior in both viscosity deviation and excess molar volume for all of the fluids examined. These deviations in excess volume indicate that the intermolecular interactions between LL and 2-alkanols are significant, primarily driven by hydrogen bonding between unlike molecules. Furthermore, the observed behavior highlights the role of molecular structure and steric hindrance of the alcohol chain in influencing the thermodynamic properties of the mixtures. The friction theory was employed to estimate the viscosity of pure chemicals and binary fluids. For pure alkanols and linalool, the viscosity calculations demonstrated a maximum error of 1.43% for linalool. In the case of binary systems, the correlated values were in good agreement with experimental results, with the largest deviation observed for the linalool + 1-heptanol mixture, reaching 2.26%. This close alignment highlights the reliability of the f-theory in modeling viscosity for both pure and mixed systems, particularly for compounds with hydrogen bonding interactions.

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来源期刊
Journal of Chemical & Engineering Data
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.
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