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

作　　者：郁彩红[1] 虞大红[1] 秦原[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：《化工学报》2001年第8期738-741,共4页CIESC Journal

基　　金：国家自然科学基金资助项目 (No .2 9736170 ;2 98760 0 6)&&

摘　　要：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.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.

关 键 词：NACL 氯化钠 活度系数 聚电解质溶液 电池电动势 离子选择性电极 聚二丙烯基二甲基氯化铵 测定 聚对丙烯茴香醚磺酸钠 

分 类 号：O646.1[理学—物理化学]