α,ω—二元羧酸在水和N,N—二甲基甲酰胺混合溶液中的体积性质  

Volumetric Properties of α,ω-dicarboxylic Acids in Aqueous Solution of N,N-dimethylformamide

作　　者：章贞阳[1] 

机构地区：[1]连云港职业技术学院,江苏连云港222006

出　　处：《连云港职业技术学院学报》2002年第4期12-13,21,共3页Journal of Lianyungang Technical College

摘　　要：报道了α,ω—二元羧酸在不同浓度的N,N—二甲基甲酰胺水溶液中的密度数据和无限稀释表观摩尔体积,并利用了改进的定标粒子理论求解溶质的空腔体积Vc和溶质—溶剂相互作用体积VI,并对VI随碳原子数目和介质浓度的变化情况作了进一步的讨论。The density of six dicarboxylic acids in aqueous solution of N,N-dimethylformamide at 298,15K were measured. From these data, the apparent molar volumes of dicarboxylic acids at infinite dilution were obtained. The cavity volumes and interaction volumes between solute and solvent were evaluate by modified scaled particle theory. Medium effect and steric effect of solvation had been discussed with the calculated results.

关 键 词：α ω-二元羧酸 表观摩尔体积 N N-二甲基甲酰胺(DMF) 改进 定标粒子理论(MSPT) 空腔体积 相互作用体积 

分 类 号：TQ225[化学工程—有机化工]