Dissociation Constant of Acetic Acid in (N,N-Dimethylformamide plus Water) Mixtures at the Temperature 298.15 K

被引：14

作者：

Fadeeva, Yuliya A. ^{[1
]}

Safonova, Lyubov P. ^{[1
,2
]}

机构：

[1] Russian Acad Sci, Inst Solut Chem, Ivanovo 153045, Russia

[2] Ivanovo State Univ Chem & Technol, Ivanovo 153000, Russia

来源：

JOURNAL OF SOLUTION CHEMISTRY | 2011年 / 40卷 / 06期

基金：

俄罗斯基础研究基金会;

关键词：

Dissociation constant; Acetic acid; N; N-Dimethylformamide; Potentiometric titration; ALIPHATIC CARBOXYLIC-ACIDS; IONIZATION-CONSTANTS; WATER-N; N-DIMETHYLFORMAMIDE MIXTURES; PREFERENTIAL SOLVATION; NONAQUEOUS SOLVENTS; DIMETHYL SULFOXIDE; DIMETHYLFORMAMIDE;

D O I：

10.1007/s10953-011-9702-6

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 the present work the thermodynamic dissociation constants of acetic acid were determined in (N,N-dimethylformamide (DMF) + water) mixtures over the DMF mole fraction range from 0 to 0.65 at the temperature 298.15 K by the potentiometric titration method. The dissociation constant in pure DMF was obtained by extrapolation and comparative calculation methods. The dependence of the acetic acid dissociation constant on the mixed solvent composition was fitted with linear multiple regression of the solvatochromic parameters of (DMF + water) mixtures at every studied composition.

引用

页码：980 / 988

页数：9

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