Measurement and correlation of the solubility of dipyi-one in ten mono and water plus ethanol mixed solvents at temperatures from (293.15 to 332.85) K

被引：16

作者：

Ding, Lei ^{[1
]}

Wang, Baohua ^{[1
]}

Wang, Fang ^{[1
]}

Dong, Jiejie ^{[1
]}

Zhou, Guangyi ^{[1
]}

Li, Hongxia ^{[1
]}

机构：

[1] Beijing Univ Chinese Med, Beijing 100102, Peoples R China

来源：

JOURNAL OF MOLECULAR LIQUIDS | 2017年 / 241卷

关键词：

Dipyrone; Solubility; Correlation; Thermodynamic properties; THERMODYNAMIC PROPERTIES; PURE SOLVENTS; MIXTURES; METHANOL; GLYCOL; ACID;

D O I：

10.1016/j.molliq.2017.06.072

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：

In this study, the aim is to obtain new solubility data, correlation equation parameters of dipyrone and thermodynamic parameters in the dissolution process. The all would be useful for optimizing the crystallization process of dipyrone. The solubility of dipyrone was experimentally measured in mono solvents including methanol, ethanol, 1-propanol, 2-propanol, 1-butanol, 2-butanol, acetone, ethyl acetate, methyl acetate, water and binary mixtures (water + ethanol) at (293.15 to 332.85) K and atmospheric pressure by using a gravimetric method. The experimental solubility in the mono solvents was correlated by the Apelblat equation, van't Hoff equation, lambda h equation and nonrandom two-liquid (NMI) equation. The solubility in the binary mixed solvents was correlated by the Apelblat equation, van't Hoff equation, lambda h equation, nonrandom two-liquid (NRTL) equation and JouybanVan't Hoff equation. The correlated values based on all the selected equations showed good agreement with the experimental values. (C) 2017 Elsevier B.V. All rights reserved.

引用

页码：742 / 750

页数：9

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