Solubility and solution thermodynamics of Meldrum's adduct in ethyl acetate plus (acetonitrile, ethanol, hexane) binary solvent mixtures

Solubility and solution thermodynamics of Meldrum's adduct in ethyl acetate plus (acetonitrile, ethanol, hexane) binary solvent mixtures
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Meldrum 加合物在乙酸乙酯加(乙腈、乙醇、己烷)二元溶剂混合物中的溶解度和溶液热力学

DOI:
10.1016/j.molliq.2016.04.096
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发表时间:
2016-08
影响因子:
6
通讯作者:
Wenzhe Ji
Wenzhe Ji
中科院分区:
化学2区
文献类型:
--
作者:
Tongqi Liu;Dingqiang Lu;Shaoning Yang;Xiuquan Ling;Wenzhe Ji

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Meldrum 加合物在由(乙酸乙酯 + 乙腈)组成的二元溶剂混合物中的溶解度; (乙酸乙酯+乙醇);和(乙酸乙酯+己烷)在278.15–333.15 K的温度范围内测量。使用修正的Apelblat方程、一般共溶剂模型和Jouyban-Acree模型来与Meldrum加合物的溶解度相关。通过比较模型,修改后的 Apelblat 方程提供了实验数据更准确的数学表示。通过范特霍夫分析计算了溶液过程的热力学性质,包括吉布斯自由能、焓和熵。
The solubility of Meldrum's adduct in binary solvent mixtures consisting of (ethyl acetate + acetonitrile); (ethyl acetate + ethanol); and (ethyl acetate + hexane) was measured in the temperature range of 278.15–333.15 K. The modified Apelblat equation, the general cosolvency model and the Jouyban-Acree model were used to correlate with the solubility of Meldrum's adduct. By comparing the models, the modified Apelblat equation provides a more accurate mathematical representation of the experimental data. The thermodynamic properties of the solution process, including the Gibbs free energy, enthalpy, and entropy were calculated by the van't Hoff analysis.
DOI: 10.1002/bmc.926
发表时间: 2008-02
期刊: Biomedical chromatography : BMC
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