Conductivity of systems comprising anion-exchange membranes MA-41 and alkaline glycine solutions

被引：2
|
作者：
D'yachkova, NG [1 ]
Zagorodnykh, LA [1 ]
Bobreshova, OV [1 ]
机构：
[1] Voronezh State Univ, Voronezh 394006, Russia
来源：
RUSSIAN JOURNAL OF ELECTROCHEMISTRY | 2006年 / 42卷 / 03期
关键词：
electrical membrane system; glycine; sodium hydroxide; deprotonation reaction; prototropic transport mechanism;
D O I：
10.1134/S1023193506030128
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
The concentration dependences of the conductivity of 0.001 M NaOH + glycine solutions and the MA-41 anion-exchange membrane are studied. At glycine concentrations c = 0-0.01 M, the solution and membrane conductivities are defined by the glycine and hydroxyl equilibrium concentrations. The charge transport in the solutions proceeds via both hydrodynamic and prototropic mechanisms. At c = 0.01 - 0.1 M, the contribution from glycine ions carrying the charge via the prototropic mechanism increases. The conductivity of the membrane is determined by the glycine anion deprotonation in it.
引用
收藏
页码：276 / 279
页数：4
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