Solubility of xylitol in mixtures of water and methanol or ethanol: Experimental measurements and thermodynamic modeling

IF 2.8 3区工程技术 Q3 CHEMISTRY, PHYSICAL Fluid Phase Equilibria Pub Date : 2025-01-30 DOI:10.1016/j.fluid.2025.114358

Alessandro C. Galvão , Rafael L.P. Scatolin , Pedro F. Arce , Henrique I. Schwerz , Matheus V. Gomes , Weber S. Robazza

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Abstract

Xylitol is a sugar alcohol classified as a prominent building block in the chemical industry. Besides, it is an important component in the food and pharmaceutical industries as an alternative to sucrose. The separation and purification of this chemical depend on experimental and theoretical information about solid-liquid equilibrium as a function of temperature, pressure, and composition. Therefore, this work aims to collect experimental data on the solubility of xylitol in hydroalcoholic solutions of methanol or ethanol for the whole range of composition of the binary liquid mixture in the range between 293.2 K to 323.2 K. The data indicates that methanol is more capable than ethanol in interacting with xylitol. Moreover, the solubility of xylitol is directly proportional to temperature and the proportion of water in the solution. Binary interaction parameters were successfully optimized for the PC-SAFT and CPA equations of state, as well as for the NRTL activity coefficient model. Additionally, the solubility behavior was predicted using the modified UNIFAC and ASOG Gibbs energy models.

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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.