Exploring hydrophobic eutectic solvents based on raspberry ketone

IF 2.8 3区工程技术 Q3 CHEMISTRY, PHYSICAL Fluid Phase Equilibria Pub Date : 2024-11-17 DOI:10.1016/j.fluid.2024.114287

Bárbara C. Jesus , José M. Pires , Hugo Marques , Isabel M. Marrucho

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Abstract

Hydrophobic Eutectic Solvents (HES) have been drawing attention over the last decade, since they offer a green possibility of replacing volatile organic solvents derived from fossil sources. This work focuses on the development of new HES based on raspberry ketone (RK). COSMO-RS (COnductor-like Screening MOdel for Real Solvents) was used to screen hydrophobic compounds to be used in HES formation with RK. Afterwards, the solid-liquid equilibrium was experimentally measured for RK and four selected compounds, DL-Menthol, Thymol, Lidocaine and Flavone, using visual turbidimetry and Differential Scanning Calorimetry. UNIversal QUAsi-Chemical (UNIQUAC) model was used to model the experimental data and validate both the experimental data and COSMO-RS results. Thermophysical properties, density and viscosity, of the prepared HES were measured, in a temperature range between 40 °C and 80 °C, for selected compositions that were liquid at room temperature. The polarity of these liquid at room temperature HES was also quantified using Kamlet-Taft and betaine dye scales. Finally, the water mutual solubility was also experimentally measured so that conclusions can be drawn about their HES hydrophobicity.

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探索基于覆盆子酮的疏水共晶溶剂

疏水性共晶溶剂（HES）在过去十年中一直备受关注，因为它们提供了一种替代化石来源挥发性有机溶剂的绿色可能性。这项工作的重点是开发基于覆盆子酮（RK）的新型 HES。COSMO-RS （Connductor-like Screening MOdel for Real Solvents）被用来筛选疏水性化合物，以用于与 RK 形成 HES。随后，使用目视浊度法和差示扫描量热法对 RK 和四种选定化合物（DL-薄荷醇、百里酚、利多卡因和黄酮）的固液平衡进行了实验测量。使用 UNIversal QUAsi-Chemical (UNIQUAC) 模型对实验数据进行建模，并对实验数据和 COSMO-RS 结果进行验证。在 40 °C 至 80 °C 的温度范围内，测量了所制备 HES 的热物理性质、密度和粘度，所选成分在室温下为液态。此外，还使用 Kamlet-Taft 和甜菜碱染料标度对这些室温液态 HES 的极性进行了量化。最后，还对水的互溶性进行了实验测量，从而得出关于 HES 疏水性的结论。

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

Fluid Phase Equilibria 工程技术-工程：化工

CiteScore

5.30

自引率

15.40%

发文量

223

审稿时长

53 days

期刊介绍： Fluid Phase Equilibria publishes high-quality papers dealing with experimental, theoretical, and applied research related to equilibrium and transport properties of fluids, solids, and interfaces. Subjects of interest include physical/phase and chemical equilibria; equilibrium and nonequilibrium thermophysical properties; fundamental thermodynamic relations; and stability. The systems central to the journal include pure substances and mixtures of organic and inorganic materials, including polymers, biochemicals, and surfactants with sufficient characterization of composition and purity for the results to be reproduced. Alloys are of interest only when thermodynamic studies are included, purely material studies will not be considered. In all cases, authors are expected to provide physical or chemical interpretations of the results. Experimental research can include measurements under all conditions of temperature, pressure, and composition, including critical and supercritical. Measurements are to be associated with systems and conditions of fundamental or applied interest, and may not be only a collection of routine data, such as physical property or solubility measurements at limited pressures and temperatures close to ambient, or surfactant studies focussed strictly on micellisation or micelle structure. Papers reporting common data must be accompanied by new physical insights and/or contemporary or new theory or techniques.