Thermodynamic properties of metamizol monohydrate in pure and binary solvents at temperatures from (283.15 to 313.15) K

Mingxia Guo; Qiuxiang Yin; Chang Wang; Yaohui Huang; Yang Li; Zaixiang Zhang; Xia Zhang; Zhao Wang; Meijing Zhang; Ling Zhou

doi:10.1016/j.cjche.2017.03.026

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Thermodynamic properties of metamizol monohydrate in pure and binary solvents at temperatures from (283.15 to 313.15) K

Chemical Engineering Thermodynamics | Updated：2026-01-06

- Thermodynamic properties of metamizol monohydrate in pure and binary solvents at temperatures from (283.15 to 313.15) K
- Chinese Journal of Chemical Engineering Vol. 25, Issue 10, Pages: 1481-1491(2017)
- Affiliations：
  
  1. School of Chemical Engineering and Technology, State Key Laboratory of Chemical Engineering, Tianjin University,Tianjin,China,300072
  2. The Co-Innovation Center of Chemistry and Chemical Engineering of Tianjin, Tianjin University,Tianjin,China,300072
- Author bio：
- Funds：
- DOI：10.1016/j.cjche.2017.03.026
  CLC：
- Published：2017
- Accepted：
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Mingxia Guo, Qiuxiang Yin, Chang Wang, Yaohui Huang, Yang Li, Zaixiang Zhang, Xia Zhang, Zhao Wang, Meijing Zhang, Ling Zhou. Thermodynamic properties of metamizol monohydrate in pure and binary solvents at temperatures from (283.15 to 313.15) K[J]. , 2017, 25(10): 1481-1491.
DOI：

Mingxia Guo, Qiuxiang Yin, Chang Wang, Yaohui Huang, Yang Li, Zaixiang Zhang, Xia Zhang, Zhao Wang, Meijing Zhang, Ling Zhou. Thermodynamic properties of metamizol monohydrate in pure and binary solvents at temperatures from (283.15 to 313.15) K[J]. , 2017, 25(10): 1481-1491. DOI： 10.1016/j.cjche.2017.03.026.

摘要

Abstract

The thermodynamic properties of metamizol monohydrate in pure solvents (methanol

ethanol

n-propanol and isopropanol) and two binary mixed solvent systems including (methanol + ethanol) and (methanol + isopropanol) were measured from 283.15 K to 313.15 K by gravimetric method under atmospheric pressure thought as 0.1 MPa. The modified Apelblat equation

the CNIBS/R-K equation

the Hybrid model and the NRTL model were used to correlate the solubility of metamizol monohydrate

respectively. The results show that the solubility of metamizol monohydrate in all the tested solvents increases with the rising temperature which means that it has temperature dependence. What's more

the effects of solvent components of the binary solvent mixtures on solubility were discussed

it illustrates that the increasing of the molar fraction of methanol gives the system a greater dissolving power. Furthermore

according to the NRTL model

the enthalpy

the Gibbs energy and the entropy of the mixing process were also obtained and discussed.

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