Solubility determination and correlation for 1,8-dinitronaphthalene in (acetone plus methanol), (toluene plus methanol) and (acetonitrile plus methanol) mixed solvents

被引：40

作者：

Du, Cunbin ^{[1
]}

Xu, Renjie ^{[1
]}

Han, Shuo ^{[1
]}

Xu, Jian ^{[1
]}

Meng, Long ^{[1
]}

Wang, Jian ^{[1
]}

Zhao, Hongkun ^{[1
]}

机构：

[1] Yangzhou Univ, Coll Chem & Chem Engn, Yangzhou 225002, Jiangsu, Peoples R China

来源：

JOURNAL OF CHEMICAL THERMODYNAMICS | 2016年 / 94卷

基金：

中国国家自然科学基金;

关键词：

1,8-Dinitronaphthalene; Solubility; Thermodynamic model; ASSISTED REGIOSELECTIVE SYNTHESIS; DIFFERENT PURE SOLVENTS; ACID; WATER; MIXTURES; ETHANOL;

D O I：

10.1016/j.jct.2015.10.015

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The solubility of 1,8-dinitronaphthalene in mixed solvents of (acetone + methanol), (toluene + methanol) and (acetonitrile + methanol) were determined experimentally by using the isothermal dissolution equilibrium method within the temperature range from (273.15 to 313.15) K under 101.3 kPa. The solubility of 1,8-dinitronaphthalene increased with increasing temperature and mass fraction of acetone or acetonitrile for the systems (acetone + methanol) and (acetonitrile + methanol). For the (toluene + methanol) system, at a certain composition of toluene, the solubility of 1,8-dinitronaphthalene increased with an increase in temperature; nevertheless at the same temperature, they increased at first and then decreased with an increase in mass fraction of toluene. At the same temperature and mass fraction of acetone, acetonitrile or toluene, the solubility of 1,8-dinitronaphthalene in acetone was greater than that in two others. The obtained solubility data were correlated by employing Jouyban-Acree model, van't Hoff-Acree model, modified Apelblat-Acree model, Ma model and Sun model. The Jouyban-Acree model was proven to give good representation of the experimental solubility data. On the base of the measured solubility, the dissolution enthalpies of the dissolution process were calculated. Dissolution of 1,8-dinitronaphthalene in these mixed solvents is an endothermic process. (C) 2015 Elsevier Ltd. All rights reserved.

引用

页码：24 / 30

页数：7

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