中国化学工程学报(英文版)
中國化學工程學報(英文版)
중국화학공정학보(영문판)
CHINESE JOURNAL OF CHEMICAL ENGINEERING
2007年
5期
710-714
,共5页
贾青竹%马沛生%马少娜%王昶
賈青竹%馬沛生%馬少娜%王昶
가청죽%마패생%마소나%왕창
solid-liquid equilibrium%polythermal method%o-amino-benzoic acid%p-amino-benzoic acid%o-chloro-benzoic acid%m-nitro-benzoic acid%1-octanol
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.
