Solid-liquid equilibrium of 1-hydroxyethane-1,1-diphosphonic acid in different solvents

被引：9
|
作者：
Zhang, Xiangyang [1 ]
Yang, Xiaowu [1 ]
Hao, Lin [1 ]
Wei, Hongyuan [1 ]
机构：
[1] Tianjin Univ, Sch Chem Engn & Technol, Tianjin 300072, Peoples R China
来源：
FLUID PHASE EQUILIBRIA | 2013年 / 338卷
基金：
国家教育部博士点专项基金资助;
关键词：
1-Hydroxyethane-1,1-diphosphonic acid; Solid-phase equilibrium; Solvent; Dissolution enthalpy; Dissolution entropy;
D O I：
10.1016/j.fluid.2012.11.001
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
The solubilities of 1-hydroxyethane-1,1-diphosphonic acid in five different solvents including ethanol, isopropyl alcohol, n-propyl alcohol, acetone and acetic acid were determined at temperatures ranging from 288.45 to 327.95 K at atmospheric pressure using a gravimetric method. Van't Hoff equation was used to correlate the experimental solubility data. The calculated values of van't Hoff equation were found to be in good agreement with the experimental data. Further, the dissolution enthalpy and entropy of HEDP in the corresponding solvents were predicted. Crown Copyright (c) 2012 Published by Elsevier B.V. All rights reserved.
引用
收藏
页码：265 / 268
页数：4
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