Enthalpic Interaction Coefficients of N,N′-Hexamethylenebisacetamide in Aqueous Glucose and Sucrose Solutions at 298.15 K

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• 作者：Guangqian Li ; Min Liu ; Lili Wang ; Lanying Zhu ; Dezhi Sun ; Youying Di
• 刊名：Journal of Chemical & Engineering Data
• 出版年：2010
• 出版时间：October 14, 2010
• 年：2010
• 卷：55
• 期：10
• 页码：4239-4243
• 全文大小：145K
• 年卷期：v.55,no.10(October 14, 2010)
• ISSN：1520-5134

文摘

The enthalpies of dilution of N,N′-hexamethylenebisacetamide in aqueous glucose and sucrose solutions have been measured by using a mixing-flow microcalorimeter at 298.15 K. The enthalpic interaction coefficients (h₂, h₃, h₄) in the range of the saccharide molality, (0 to 2.0) mol·kg⁻¹, have been calculated according to the McMillan−Mayer model. The results show that the enthalpic pairwise interaction coefficients h₂ of N,N′-hexamethylenebisacetamide in both the saccharide solutions are positive and become less positive with the increase of the saccharide molality. The value of h₂ in aqueous glucose solutions is larger than that in aqueous sucrose solutions of the same molality. The effects of the two saccharides on h₂ are discussed in terms of the solute−solute and solute−solvent interactions.