| 水—DMF—NaCl系统活度系数和粘度测定 |
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| 引用本文： | 秦原 虞大红 等. 水—DMF—NaCl系统活度系数和粘度测定[J]. 医学教育探索, 2001, 0(1): 94-97 |
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| 作者姓名： | 秦原 虞大红 等 |
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| 作者单位： | 华东理工大学化学系!上海200237 |
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| 基金项目： | 国家自然科学基金!资助项目 (2 9876 0 0 6，2 9736 170 ) |
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| 摘 要： | 利用电池电动势法测定了298.15K下NaCl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NaCl的活度系数减小，测定了水－DMF－NaCl混合物在不同温度下的粘度。
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| 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 |
Measurement of Activity Coefficient and Viscosity of Water-DMF-NaCl Mixture |
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| QIN Yuan,YU Da hong,HU Wei,LIU Hong lai,HU Ying. Measurement of Activity Coefficient and Viscosity of Water-DMF-NaCl Mixture[J]. Researches in Medical Education, 2001, 0(1): 94-97 |
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| Authors: | QIN Yuan YU Da hong HU Wei LIU Hong lai HU Ying |
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| Abstract: | 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% . |
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| Keywords: | activity coefficient mixed solvents viscosity N N dimethylformamide EMF |
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