Thermodynamic models for determination of the solubility of dl-malic acid in methanol plus (acetonitrile, N,N-dimethylformamide, isopropyl alcohol) binary solvent mixtures

Qi Zhang; Yang Yang; Limin Cheng; Cuicui Cao; Zhiwen Ding; Chunxiao Wang; Wenge Yang; Yonghong Hu; Yonglan Li

doi:10.1016/j.jct.2015.02.002

Thermodynamic models for determination of the solubility of dl-malic acid in methanol plus (acetonitrile, N,N-dimethylformamide, isopropyl alcohol) binary solvent mixtures

Qi Zhang, Yang Yang, Limin Cheng, Cuicui Cao, Zhiwen Ding, Chunxiao Wang, Wenge Yang, Yonghong Hu, Yonglan Li

Research output: Contribution to journal › Article › peer-review

18 Scopus citations

Abstract

The solubility of dl-malic acid in binary solvent mixtures consisting of (methanol + acetonitrile); (methanol + N,N-dimethylformamide); and (methanol + isopropyl alcohol) was measured at temperatures ranging from (278.15 to 328.15) K by gravimetric method. Values of the solubility were fitted using modified Apelblat equation and Buchowski-Ksiazaczak λh model. Computational results showed that the modified Apelblat equation was superior to the other equation. In addition, the thermodynamic properties of the solution process, including the Gibbs free energy, enthalpy, and entropy were calculated by the van't Hoff analysis. This study provides valuable data for the dl-malic acid purification by the preferential crystallization procedure.

Original language	English
Pages (from-to)	148-154
Number of pages	7
Journal	Journal of Chemical Thermodynamics
Volume	85
DOIs	https://doi.org/10.1016/j.jct.2015.02.002
State	Published - Jun 2015

Keywords

Buchowski-Ksiazaczak λh model
Modified Apelblat equation
Thermodynamic properties
dl-malic acid

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10.1016/j.jct.2015.02.002

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title = "Thermodynamic models for determination of the solubility of dl-malic acid in methanol plus (acetonitrile, N,N-dimethylformamide, isopropyl alcohol) binary solvent mixtures",

abstract = "The solubility of dl-malic acid in binary solvent mixtures consisting of (methanol + acetonitrile); (methanol + N,N-dimethylformamide); and (methanol + isopropyl alcohol) was measured at temperatures ranging from (278.15 to 328.15) K by gravimetric method. Values of the solubility were fitted using modified Apelblat equation and Buchowski-Ksiazaczak λh model. Computational results showed that the modified Apelblat equation was superior to the other equation. In addition, the thermodynamic properties of the solution process, including the Gibbs free energy, enthalpy, and entropy were calculated by the van't Hoff analysis. This study provides valuable data for the dl-malic acid purification by the preferential crystallization procedure.",

keywords = "Buchowski-Ksiazaczak λh model, Modified Apelblat equation, Thermodynamic properties, dl-malic acid",

author = "Qi Zhang and Yang Yang and Limin Cheng and Cuicui Cao and Zhiwen Ding and Chunxiao Wang and Wenge Yang and Yonghong Hu and Yonglan Li",

year = "2015",

month = jun,

doi = "10.1016/j.jct.2015.02.002",

language = "英语",

volume = "85",

pages = "148--154",

journal = "Journal of Chemical Thermodynamics",

issn = "0021-9614",

publisher = "Academic Press",

}

TY - JOUR

T1 - Thermodynamic models for determination of the solubility of dl-malic acid in methanol plus (acetonitrile, N,N-dimethylformamide, isopropyl alcohol) binary solvent mixtures

AU - Zhang, Qi

AU - Yang, Yang

AU - Cheng, Limin

AU - Cao, Cuicui

AU - Ding, Zhiwen

AU - Wang, Chunxiao

AU - Yang, Wenge

AU - Hu, Yonghong

AU - Li, Yonglan

PY - 2015/6

Y1 - 2015/6

N2 - The solubility of dl-malic acid in binary solvent mixtures consisting of (methanol + acetonitrile); (methanol + N,N-dimethylformamide); and (methanol + isopropyl alcohol) was measured at temperatures ranging from (278.15 to 328.15) K by gravimetric method. Values of the solubility were fitted using modified Apelblat equation and Buchowski-Ksiazaczak λh model. Computational results showed that the modified Apelblat equation was superior to the other equation. In addition, the thermodynamic properties of the solution process, including the Gibbs free energy, enthalpy, and entropy were calculated by the van't Hoff analysis. This study provides valuable data for the dl-malic acid purification by the preferential crystallization procedure.

AB - The solubility of dl-malic acid in binary solvent mixtures consisting of (methanol + acetonitrile); (methanol + N,N-dimethylformamide); and (methanol + isopropyl alcohol) was measured at temperatures ranging from (278.15 to 328.15) K by gravimetric method. Values of the solubility were fitted using modified Apelblat equation and Buchowski-Ksiazaczak λh model. Computational results showed that the modified Apelblat equation was superior to the other equation. In addition, the thermodynamic properties of the solution process, including the Gibbs free energy, enthalpy, and entropy were calculated by the van't Hoff analysis. This study provides valuable data for the dl-malic acid purification by the preferential crystallization procedure.

KW - Buchowski-Ksiazaczak λh model

KW - Modified Apelblat equation

KW - Thermodynamic properties

KW - dl-malic acid

UR - http://www.scopus.com/inward/record.url?scp=84923341719&partnerID=8YFLogxK

U2 - 10.1016/j.jct.2015.02.002

DO - 10.1016/j.jct.2015.02.002

M3 - 文章

AN - SCOPUS:84923341719

SN - 0021-9614

VL - 85

SP - 148

EP - 154

JO - Journal of Chemical Thermodynamics

JF - Journal of Chemical Thermodynamics

ER -

Thermodynamic models for determination of the solubility of dl-malic acid in methanol plus (acetonitrile, N,N-dimethylformamide, isopropyl alcohol) binary solvent mixtures

Abstract

Keywords

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