取代苯甲酸类化合物在正辛醇中的固液平衡

TQ0; 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...

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Published in:中国化学工程学报(英文版) 2007, Vol.15 (5), p.710-714
Main Authors: 贾青竹, 马沛生, 马少娜, 王昶
Format: Article
Language:Chinese
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Summary:TQ0; 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.
ISSN:1004-9541