Solubility Behavior and Thermodynamic Modeling of Inosine (Form β) in Four Cosolvency Systems at T=278.15 to 323.15 K

被引:2
|
作者
Shi, Yuli [1 ,2 ]
Zhang, Haojian [1 ]
Wang, Xiaodong [2 ]
机构
[1] Ningbo Univ Technol, Sch Mat & Chem Engn, Ningbo 315016, Zhejiang, Peoples R China
[2] Univ Aberdeen, Chem & Mat Engn, Sch Engn, Aberdeen AB24 3UE, Scotland
来源
JOURNAL OF CHEMICAL AND ENGINEERING DATA | 2020年 / 65卷 / 04期
关键词
MAGNESIUM-DL-ASPARTATE; WATER MIXED-SOLVENTS; P-TOLUIC ACID; SOLUTE SOLUBILITY; BINARY SOLVENTS; MIXTURES; METHANOL; CRYSTAL; ETHANOL; POLYMORPHISM;
D O I
10.1021/acs.jced.0c00046
中图分类号
O414.1 [热力学];
学科分类号
摘要
N,N-Dimethylformamide (DMF) as the main solvent with strong dissolving power was blended with four secondary solvents (ethanol, n-propanol, isopropanol, and propylene glycol) with relatively weak dissolving power to form many new solvents. The dispersion index (inosine (form beta) mole fraction) in five organic solvents such as DMF and in the newly formed solvent was also obtained one by one with the static method commonly used in solid-liquid equilibrium. The temperature environment includes the high temperature set at 323.15 K, the low temperature set at 278.15 K, and an interval between each temperature of 5 K. The pressure environment was the atmospheric pressure in the natural state, and the usual value was 101.0 kPa. In a mixed system, temperature was a non-negligible influencing factor from beginning to end, and its increase often led the solute to the trend of high solubility. In addition, the proportion of the main solvent also dominated the solubilization trend of the inosine (form beta); the larger the proportion of DMF, the easier the dissolution process. When both of the above factors were fixed at a certain point, the dispersing ability of the dispersing liquid composed of DMF and ethanol was undoubtedly the first. Three models (Jouyban-Acree model, van't Hoff-Jouyban-Acree model, and modified Apelblat-Jouyban-Acree model) were used to correlate the solubility data. The largest relative average deviation and root-mean-square deviation values were 4.66 X 10(-2) and 7.27 X 10(-4), respectively. The dispersion data of inosine (form beta) obtained through this experimental process and related thermodynamic parameters obtained through thermodynamic calculations have important application significance for its industrial production and further purification.
引用
收藏
页码:2170 / 2177
页数:8
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