Kinetics of two redox reactions in 2-butoxyethanol and water near its critical point of solution

被引：1

作者：

Du, Zhongyu ^{[1
]}

Duan, Siyu ^{[2
]}

Ma, Mingfang ^{[1
]}

Xu, Xiangyu ^{[3
]}

Li, Zhenquan ^{[1
]}

Kong, Lingdong ^{[1
]}

Liu, Jun ^{[1
]}

机构：

[1] Jining Med Univ, Lab New Antitumor Drug Mol Design & Synth, Coll Basic Med, Jining 272067, Peoples R China

[2] Jining Med Univ, Sch Publ Hlth, Jining, Peoples R China

[3] Jining Med Univ, Bionano & Med Engn Inst, Jining, Peoples R China

来源：

INTERNATIONAL JOURNAL OF CHEMICAL KINETICS | 2019年 / 51卷 / 04期

关键词：

critical slowing down; critical exponent; reaction kinetics; ACID PLUS WATER; CHEMICAL-EQUILIBRIUM; HYDROLYSIS REACTION; CONSOLUTE POINT; CRYSTAL VIOLET; ETHYL-ACETATE; SAPONIFICATION; COEFFICIENTS; ANOMALIES; MIXTURES;

D O I：

10.1002/kin.21248

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 rate constants of two redox reactions Fe ( CN )64-+S2O82- and Fe ( phen )32++S2O82- in the critical solution of 2-butoxyethanol and water have been measured by using the UV spectrophotometry at the initial reaction stage. It was found that the rate constants at various temperatures for two reactions were well described by the Arrhenius equation in the noncritical region. The critical slowing down effect was detected in the critical region. The critical slowing down exponents were determined to be 0.044 +/- 0.004 and 0.046 +/- 0.005 for reactions Fe ( CN )64-+S2O82- and Fe ( phen )32++S2O82-, respectively. The values of the critical slowing down exponents showed that only dynamic critical slowing down effect, and no thermodynamic singularity could be observed for the two reactions.

引用

页码：258 / 265

页数：8

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