文献类型：期刊文献

英文题名：Measurement and correlation of the solubility of hexaquonickel(II) bis(p -toluenesulfonate) in water + ethanol solvents within 288.15-333.15 K

作者：Yu, Chao[1]; Zeng, Zuo-Xiang[1]; Xue, Wei-Lan[1]

机构：[1] Institute of Chemical Engineering, East China University of Science and Technology, Shanghai, 200237, China

年份：2015

卷号：54

期号：15

起止页码：3961

外文期刊名：Industrial and Engineering Chemistry Research

收录：EI(收录号：20151800801593)

语种：英文

外文关键词：Ethanol - Organic solvents

摘要：The solubilities of hexaquonickel(II) bis(p-toluenesulfonate) [Ni(OTs)2·6H2O] in an ethanol-water mixture containing a mole fraction of 0-0.342 ethanol were measured at temperatures ranging from 288.15 to 333.15 K by using a synthetic method. The experimental data were fitted using the van't Hoff plot, the modified Apelblat equation, the general single model, and the hybrid model. All of these models show good agreement with the experimental data. The solubility of Ni(OTs)2·6H2O increases with an increase of the temperature and the initial mole fraction of ethanol in the mixed solvents. Further, the molecular modeling studies using Materials Studio DMol3 (Accelrys Software Inc.) indicated that the solubility of Ni(OTs)2·6H2O depends not only on the polarities of the solvents but also on the interactions between Ni(OTs)2·6H2O and solvent molecules. The enthalpy, Gibbs energy, and entropy of the solution process were derived by the modified van't Hoff equation. ? 2015 American Chemical Society.