水-DMF-NaCl系统活度系数和粘度测定  

Measurement of Activity Coefficient and Viscosity of Water-DMF-NaCl Mixture

作　　者：秦原[1] 虞大红[1] 胡伟[1] 刘洪来[1] 胡英[1] 

机构地区：[1]华东理工大学化学系,上海200237

出　　处：《华东理工大学学报（自然科学版）》2001年第1期94-97,共4页Journal of East China University of Science and Technology

基　　金：国家自然科学基金!资助项目 (2 9876 0 0 6 ;2 9736 170 )

摘　　要：利用电池电动势法测定了 2 98.1 5K下 Na Cl在不同 DMF含量的水 - DMF混合溶剂中的活度系数。结果表明 ,随着混合溶剂中 DMF含量的增加 Na Cl的活度系数减小。测定了水 - DMF-Na Cl混合物在不同温度下的粘度。Activity coefficients of NaCl in water N,N dimethylformamide (DMF) mixed solvents are determined at 298.15K by EMF measurement with sodium ion selective electrode and Ag AgCl electrode. It is shown that the activity coefficient of NaCl decrease with the increase of concentration of DMF in mixed solvents. The viscosities of water DMF NaCl ternary system at different temperature have also been measured. The experimental viscosities have been correlated by using pseudo binary solute aggregation model presented by Liu et al. The mean deviation between calculated results and experimental data is 2.5% .

关 键 词：活度系数 混合溶剂 粘度 N N-二甲基甲酰胺 电池电动势法 测定 水-DMF-氯化纳系统 

分 类 号：O645.1[理学—物理化学]