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Measurement and Modeling of Solubilities of d -Glucose in Water/Alcohol and Alcohol/Alcohol Systems

António M. Peres, Eugénia A. Macedo

Open publisher page 33 citations

Abstract

In this work, the solubilities of d -glucose in water/methanol and ethanol/methanol mixtures are measured at 40 and 60 °C, using a simple and accurate analytical method. A modified UNIQUAC model is used for the correlation of the experimental solubility data. New UNIQUAC interaction parameters for the pairs d -glucose/alcohol, water/alcohol, and alcohol/alcohol are estimated based on the ternary solubility data presented in this work together with those available in the literature for d -glucose in water/ethanol. The solubility calculations were performed using an equation based on enthalpy of fusion data for d -glucose. The model describes satisfactorily the experimental solubility data of d -glucose in water/ethanol, water/methanol, and ethanol/methanol mixtures at both temperatures.

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What this paper is about

In this work, the solubilities of d -glucose in water/methanol and ethanol/methanol mixtures are measured at 40 and 60 °C, using a simple and accurate analytical method. A modified UNIQUAC model is used for the correlation of the experimental solubility data. New UNIQUAC interaction parameters for the pairs d -glucose/alcohol, water/alcohol, and alcohol/alcohol are estimated based on the ternary solubility data presented in this work together with those available in the literature for d -glucose in water/ethanol. The solubility calculations were performed using an equation based on enthalpy of fusion data for d -glucose. The model describes satisfactorily the experimental solubility data of d -glucose in water/ethanol, water/methanol, and ethanol/methanol mixtures at both temperatures.

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Available abstract

In this work, the solubilities of d -glucose in water/methanol and ethanol/methanol mixtures are measured at 40 and 60 °C, using a simple and accurate analytical method. A modified UNIQUAC model is used for the correlation of the experimental solubility data. New UNIQUAC interaction parameters for the pairs d -glucose/alcohol, water/alcohol, and alcohol/alcohol are estimated based on the ternary solubility data presented in this work together with those available in the literature for d -glucose in water/ethanol. The solubility calculations were performed using an equation based on enthalpy of fusion data for d -glucose. The model describes satisfactorily the experimental solubility data of d -glucose in water/ethanol, water/methanol, and ethanol/methanol mixtures at both temperatures.

Key concepts: UNIQUAC, Solubility, Alcohol, Methanol, Chemistry, Ethanol, Enthalpy, Ternary operation

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Measurement and Modeling of Solubilities of d -Glucose in Water/Alcohol and Alcohol/Alcohol Systems — Research Paper | ScholarLens