Solid-Liquid Equilibria of Benzoic Acid Derivatives in 1-Octanol  

作　　者：贾青竹 马沛生 马少娜 王昶 

机构地区：[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

出　　处：《Chinese Journal of Chemical Engineering》2007年第5期710-714,共5页中国化学工程学报（英文版）

基　　金：Supported by the National Natural Science Foundation of China （No.20676101） and the Natural Science Foundation of Tianjin University of Science ＆ Technology （No.20050207）.

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 equation. 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.在 1-octanol 的安息香的酸衍生物的稳固液体的平衡首先在这篇文章被决定。用监视观察技术， 0-amino-benzoic 酸的溶解度数据， p-amino-benzoic 酸， 0-chloro-benzoic 酸，和 m-nitro-benzoic 的激光，在 1-octanol 的酸被 polythermal 方法在 20 50 ° C 的温度范围测量。试验性的数据是有威尔森方程和λ H 方程的 regressed。试验性的结果证明在 1-octanol 的四化学药品的溶解度与温度显著地增加了。结果显示分子的结构和相互作用显著地影响溶解度。安息香的酸衍生物的溶解度顺序如下：m-nitro-benzoic 酸 > 0-chloro-benzoic 酸 > 0-amino-benzoic 酸 > p-amino-benzoic 酸。威尔森方程和λ H 方程在对试验性的数据的好同意。

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 

分 类 号：O642.4[理学—物理化学]