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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