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NaCl在聚电解质溶液中活度系数的实验测定

MEASUREMENT OF MEAN ACTIVITY COEFFICIENTS OF NaCl IN POLYELECTROLYTE SOLUTIONS

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【作者】 郁彩红虞大红秦原刘洪来胡英

【Author】 YU Caihong,YU Dahong,QIN Yuan,LIU Honglai and HU Ying (Department of Chemistry, East China University of Science and Technology, Shanghai 2000237,China)

【机构】 华东理工大学化学系!上海200237

【Abstract】 Electromotive force measurements of the cell, Na-ISE|polyelectrolyte( m p(mono) ),NaCl( m a)|AgCl,Ag,are carried out at the different molalities of NaCl in aqueous poly(diallydimethylammonium chloride)(PDADMAC)and poly(anetholesulfonic acid, sodium salt)(PAS) solutions at 308.15 K. The mean activity coefficients of NaCl in aqueous polyelectrolyte solutions are determined by using the standard cell potential which are obtained from the measurements of the electromotive force of cell,Na-ISE| NaCl( m )|AgCl, Ag, combining with the Pitzer model for electrolyte solution.At different concentrations of PDADMAC solution, the mean activity coefficients of NaCl decrease monotonically as the concentrations of NaCl increase.However, for the aqueous solutions of PAS, there is a maximum value as the concentrations of NaCl increase.

【基金】 国家自然科学基金资助项目 (No .2 9736170 ;2 98760 0 6)&&
  • 【文献出处】 化工学报 ,Journal of Chemical Industry and Engineering(China) , 编辑部邮箱 ,2001年08期
  • 【分类号】O646
  • 【被引频次】13
  • 【下载频次】190
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