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Huazhi Xiao,Zhanzhong Wang,Qian Wang,Xiangshan Liu,Wenzhi Fang,Yan Li 한국화학공학회 2013 Korean Journal of Chemical Engineering Vol.30 No.4
The solubility of xylitol in ethanol+water solvent mixtures was measured at temperatures ranging from 278.00 K to 323.00 K at atmospheric pressure by using a laser technique. The results of these measurements were correlated by the combined nearly ideal binary solvent CNIBS/Redlich-Kister equation. The experimental solubility and correlation equation in this work can be used as essential data and models in the purification process of xylitol. The variant 2 in the CNIBS/R-K models was confirmed to be more adaptable to predict solubility of xylitol in binary ethanol +water system. Using the experimentally measured solubilities, the thermodynamic properties of dissolution of xylitol,such as Gibbs energy, molar enthalpy of dissolution, and molar entropy of dissolution, were calculated.