Apparent molar volumes of sodium methylbenzoates in N,N-dimethyl formamide-water mixtures at 298.15 K

被引：4
|
作者：
Li, SQ [1 ]
Yu, JM
Lin, RS
机构：
[1] Chinese Acad Sci, Inst Bot, Key Lab Photosynth & Environm Mol Physiol, Photosynth Res Ctr, Beijing 100093, Peoples R China
[2] Zhejiang Univ, Dept Chem, Hangzhou 310027, Peoples R China
来源：
JOURNAL OF SOLUTION CHEMISTRY | 2003年 / 32卷 / 12期
关键词：
sodium methylbenzoate; DMF-water mixed solvent; apparent molar volumes; substituent effect; solvent effect;
D O I：
10.1023/B:JOSL.0000023921.02745.49
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：
Densities of sodium methylbenzoate (o-, m-, p-) have been measured in dimethyl formamide (DMF)-water mixtures at 298.15 K with an oscillating-tube densimeter. From these densities, apparent molar volumes of sodium methylbenzoates in DMF-H2O mixtures have been calculated and partial molar volumes at infinite dilution have been evaluated. Substituent and solvent effects on the transfer volumes of each isomer from water to DMF-H2O mixed solvents have also been obtained. The results are explained in terms of solvent-solvent and solute-solvent interactions.
引用
收藏
页码：1065 / 1074
页数：10
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