Solid-Liquid Equilibrium of Isomaltulose in Five Pure Solvents and Four Binary Solvents from (283.15 to 323.15) K
Solid-Liquid Equilibrium of Isomaltulose in Five Pure Solvents and Four Binary Solvents from (283.15 to 323.15) K
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异麦芽酮糖在五种纯溶剂和四种二元溶剂（283.15 至 323.15）K 中的固液平衡
DOI：
10.1021/acs.jced.8b00823
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发表时间：
2019-03-01
期刊：
影响因子：
--
通讯作者：
Zhang, Huixuan
中科院分区：
文献类型：
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作者：
Song, Shuang;Guo, Jun;Zhang, Huixuan
用重量法测定了异麦芽糖在5种单溶剂（水、甲醇、乙醇、异丙醇和丙酮）和4种不同二元溶剂（水+甲醇、水+乙醇、水+异丙醇和水+丙酮）中的溶解度，温度范围为（283.15 ~ 323.15）k。结果表明，异麦芽糖的溶解度随温度的升高而升高。在给定温度下，异麦芽糖在这些选定的纯溶剂中的溶解度顺序为：水b>甲醇>乙醇>异丙醇>丙酮。在水+丙酮溶剂体系中，溶质的溶解度随着水摩尔分数的增加而增加。在水+醇溶剂体系中，由于极性和氢键的影响，溶解度值在一定的溶剂组成下达到最小。采用Apelblat模型、CNIBS/R-K模型和改进的Jouyban-Acree模型（Apel-JA模型）对实验数据进行关联，结果表明这些模型都适合于溶解度结果的关联。
The solubility of isomaltulose in five monosolvents (water, methanol, ethanol, isopropanol, and acetone) and four different binary solvents (water + methanol, water + ethanol, water + isopropanol, and water + acetone) was measured by a gravimetric method at temperatures ranging from (283.15 to 323.15) K. Results showed that the solubility of isomaltulose increased with increasing temperature. The order of isomaltulose solubility in these selected pure solvents at a given temperature was water > methanol > ethanol > isopropanol > acetone. In water + acetone solvent system, the solubility of solute just increased with increasing water mole fraction. In water + alcohol solvent systems, the minimum solubility values were achieved at a certain solvent composition because of the influence of polarity and hydrogen bond. The Apelblat model, the CNIBS/R-K model, and the modified version of the Jouyban-Acree model (the Apel-JA model) were used to correlate the experimental data, and the results indicated that those models were all suitable to correlate the solubility results.