取代苯甲酸类化合物在正辛醇中的固液平衡

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取代苯甲酸类化合物在正辛醇中的固液平衡

贾青竹^1,2; 马沛生¹; 马少娜²; 王昶²

¹ School of Chemical Engineering, Tianjin University, Tianjin 300072, China
² Department of Environmental Science and Engineering, Tianjin University of Science &Technology, Tianjin 300457, China

收稿日期:2006-06-26 修回日期:1900-01-01 出版日期:2007-10-28 发布日期:2007-10-28
通讯作者: 贾青竹

Solid-liquid equilibria of Benzoic acid derivatives in 1-octanol

JIA Qingzhu^1,2; MA Peisheng¹; MA Shaona²; WANG Chang²

¹ School of Chemical Engineering, Tianjin University, Tianjin 300072, China
² Department of Environmental Science and Engineering, Tianjin University of Science &Technology, Tianjin 300457, China

Received:2006-06-26 Revised:1900-01-01 Online:2007-10-28 Published:2007-10-28
Contact: JIA Qingzhu

摘要/Abstract

摘要： The solid-liquid equilibrium of benzoic acid derivatives in 1-octanol was first determined in this article. Using a laser monitoring observation technique, the solubility data of o-amino-benzoic acid, p-amino-benzoic acid, o-chloro-benzoic acid, and m-nitro-benzoic acid in 1-octanol were measured by the polythermal method in the temperature range of 20—50℃. The experimental data were regressed with the Wilson equation and the λH equa-tion. The experimental results showed that the solubility of the four chemicals in 1-octanol increased significantly with temperature. The results indicate that the molecular structure and interactions affect the solubility significantly. The solubility order of the benzoic acid derivatives is as follows: m-nitro-benzoic acid＞o-chloro-benzoic acid＞o-amino-benzoic acid＞p-amino-benzoic acid. Both the Wilson equation and λH equation are in good agreement with the experimental data.

关键词: solid-liquid equilibrium;polythermal method;o-amino-benzoic acid;p-amino-benzoic acid;o-chloro-benzoic acid;m-nitro-benzoic acid;1-octanol

Abstract: The solid-liquid equilibrium of benzoic acid derivatives in 1-octanol was first determined in this article. Using a laser monitoring observation technique, the solubility data of o-amino-benzoic acid, p-amino-benzoic acid, o-chloro-benzoic acid, and m-nitro-benzoic acid in 1-octanol were measured by the polythermal method in the temperature range of 20—50℃. The experimental data were regressed with the Wilson equation and the λH equa-tion. The experimental results showed that the solubility of the four chemicals in 1-octanol increased significantly with temperature. The results indicate that the molecular structure and interactions affect the solubility significantly. The solubility order of the benzoic acid derivatives is as follows: m-nitro-benzoic acid＞o-chloro-benzoic acid＞o-amino-benzoic acid＞p-amino-benzoic acid. Both the Wilson equation and λH equation are in good agreement with the experimental data.

Key words: solid-liquid equilibrium, polythermal method, o-amino-benzoic acid, p-amino-benzoic acid, o-chloro-benzoic acid, m-nitro-benzoic acid

贾青竹, 马沛生, 马少娜, 王昶. 取代苯甲酸类化合物在正辛醇中的固液平衡[J]. , DOI: .

JIA Qingzhu, MA Peisheng, MA Shaona, WANG Chang. Solid-liquid equilibria of Benzoic acid derivatives in 1-octanol[J]. , DOI: .

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