Measurement and correlation of solubility and thermodynamic properties of dicumyl peroxide (DCP) in pure and binary solvents

被引：24

作者：

Zhou, Jing ^{[1
,2
]}

Hao, Lin ^{[1
,2
]}

Hao, Hongxun ^{[1
,2
]}

Yu, Zengrui ^{[1
,2
]}

Zhou, Lina ^{[1
,2
]}

机构：

[1] Tianjin Univ, Sch Chem Engn & Technol, State Key Lab Chem Engn, Tianjin 300072, Peoples R China

[2] Natl Ind Crystallizat Engn Technol Res Ctr, Tianjin 300072, Peoples R China

来源：

JOURNAL OF MOLECULAR LIQUIDS | 2020年 / 314卷

基金：

中国国家自然科学基金;

关键词：

Dicumyl peroxide; Solubility; Correlation; Solution thermodynamics; WATER; ACID; ETHANOL; EQUILIBRIUM; PREDICTION;

D O I：

10.1016/j.molliq.2020.113268

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The solid-liquid equilibrium data of dicumyl peroxide (DCP) in seven pure solvents and ethanol-water binary system and DMF-water binary system were measured from 274.15 K to 302.15 K by a gravimetric method under atmospheric pressure. The results show that the solid-liquid equilibrium solubility of DCP rapid increased with augmented temperature in different types of pure solvent while the solubility in binary solvent mixtures increases with the increasing of the fraction of ethanol and DMF. The measured data in pure solvents were correlated with several thermodynamic models including the modified Apelblat model, Mr model and NRTL model. All the experimental results were agreement with the fitted values. Moreover, the NICE model was adopted to calculate the enthalpy, entropy and Gibbs energy change during the dissolution process. And for the binary solvent system, the CNIBS/R-K model was used to correlate the solubility data. It was found that the correlated results by the NRTL model agreed best with the experimental data. Besides the results indicate that the mixing process of dicumyl peroxide in the experimental solvents was spontaneous and entropy-driven. (C) 2020 Published by Elsevier B.V.

引用

页数：15