高校化学工程学报2017，Vol.31Issue(2)：284-290,7.DOI:10.3969/j.issn.1003-9015.2017.00.004
对二甲氨基苯甲醛在不同的溶剂中溶解度测定与关联
Measurement and Correlation ofp-Dimethylaminobenzaldehyde Solubility in Different Solvents
摘要
Abstract
The solubility of p-dimethylaminobenzaldehyde in toluene, ethyl acetate, cyclohexane, acetone,n-butyl alcohol, methanol, n-hexanophenone, cyclohexanone and acetyl acetone was measured using a static equilibrium method at 283.15~308.15 K under atmospheric pressure. The results show that the solubility of p-dimethylaminobenzaldehyde in those selected solvents increases with the increase of temperature. However,the change rate of solubility varies, which shows the largest variation in acetone. Modified Apelblat equation,van't Hoff equation and empirical equation were used in data regression and the average relative deviations are 17%, 23%, 40%, respectively. These results indicate that the solubility data can be correlated by these three models, and Modified Apelblat equation provides the best fitting result. The experimental results and correlation models can be used for solvent selection in p-dimethylaminobenzaldehyde production, extraction and purification.关键词
溶解度/对二甲氨基苯甲醛/溶解度模型/静态平衡法Key words
solubility/p-dimethylaminobenzaldehyde/solubility model/static equilibrium method分类
化学化工引用本文复制引用
谢永,蒋奇齐,王红艳,史洪伟..对二甲氨基苯甲醛在不同的溶剂中溶解度测定与关联[J].高校化学工程学报,2017,31(2):284-290,7.基金项目
安徽高校自然科学研究项目资助(KJ2016A888) （KJ2016A888）
安徽省自然科学基金项目(1408085MB40) （1408085MB40）
校企合作横向课题(2015hx016). （2015hx016）
