Partial molar volumes of tetraalkylammonium ions in N,N-dimethylformamide

被引：10
|
作者：
Safonova, LP
Svetsova, EV
Kiselev, MG
机构：
[1] Ivanovo State Univ Chem & Technol, Ivanovo 153460, Russia
[2] RAS, Inst Solut Chem, Ivanovo 153045, Russia
来源：
JOURNAL OF SOLUTION CHEMISTRY | 2005年 / 34卷 / 05期
关键词：
partial molar volumes; N; N-dimethylformamide; tetraalkylammonium ions;
D O I：
10.1007/s10953-005-4514-1
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 densities of tetraalkylammonium bromide, R4NBr ( R = Et, Pr, Bu, Hex, Hep, Oct), solutions in dimethylformamide have been measured for the composition range (0.05 - 0.4) mol-kg(-1) at 25 degrees C. Apparent molar V-phi and limiting partial molar volumes (V) over bar (o)(2) of the electrolytes have been evaluated. Using the extrapolation values, the limiting partial molar volumes of the tetraalkymammonium ions ((V) over bar (o)(i)) have been calculated. Analysis of different contributions to the ionic (V) over bar (o)(i) indicated partial penetration of solvent molecules into the van der Waal's volume of tetraalkylammonium (TAA) ions.
引用
收藏
页码：529 / 536
页数：8
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