Volumetric Properties of Some Aliphatic Mono- and Dicarboxylic Acids in Water at 298.15 K

被引：9

作者：

Bald, Adam ^{[1
]}

Kinart, Zdzislaw ^{[1
]}

机构：

[1] Univ Lodz, Dept Phys Chem Solut, PL-90236 Lodz, Poland

来源：

JOURNAL OF SOLUTION CHEMISTRY | 2011年 / 40卷 / 01期

关键词：

Carboxylic acid; Apparent molar volume; Water; APPARENT MOLAR VOLUMES; AQUEOUS-SOLUTIONS; HEAT-CAPACITIES; CARBOXYLIC-ACIDS; ORGANIC-ACIDS; SODIUM-SALTS; THERMODYNAMICS; ELECTROLYTES; DISSOCIATION; TEMPERATURES;

D O I：

10.1007/s10953-010-9621-y

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 apparent molar volumes, V-phi, of two series of homologous aliphatic carboxylic acids, H(CH2)(n)COOH [n = 0-5] and (CH2)(n)(COOH)(2) [n = 0-5], were determined in dilute aqueous solutions by density measurements at T = 298.15 K. Densities were measured using a vibrating-tube densimeter (DMA 5000, Anton Paar, Austria) at T = 298.15 K. These results were used to calculate the apparent molar volumes of each solute over the concentration range 0.0050 <= m/(mol.kg(-1)) <= 0.3000. Values of the apparent molar volumes of undissociated acids V-phi(u)(0) were also calculated. The variation of V-phi(u)(0)(u) was determined as a function of the aliphatic chain length of the studied carboxylic acids.

引用

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页数：16

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