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电导法和互扩散法测定不等价反离子通过离子交换膜的扩散系数
COMPARATIVE MEASUREMENTS OF SELF-DIFFUSION COEFFICIENTS OF CONTER-IONS WITH UNEQUAL VALENCE THROUCH A CATION EXCHANGE MEMBRANE BY CONDUCTIVITY AND INTER-DIFFUSION
【摘要】 本文从理论上分析了互扩散法和电导法测定反离子通过离子交换膜的自扩散系数,用这二种方法测定了Cu2+和H+通过聚苯醚均相阳膜的自扩散系数,对所得的结果进行了比较和验证。
【Abstract】 This paper theoretically derived the equations for calculation of self diffusion coefficients of counter ions with unequal valence throuth a cation exchange membrane by conductivity or inter diffusion, respectively.The HCl-CuCl 2 system was experimentally studied by using a Poly(phenylene Oxide) polymer cation membrane. The self diffusion coefficients of Cu 2+ and H + were determined by these two methods and compared with each other. The results showed a good coincidence between them.
【关键词】 电导法;
互扩散法;
离子交换膜;
自扩散系数;
【Key words】 conductivity; inter diffusion; ion exchange membrane; self diffusion coefficient;
【Key words】 conductivity; inter diffusion; ion exchange membrane; self diffusion coefficient;
- 【文献出处】 水处理技术 ,TECHNOLOGY OF WATER TREATMENT , 编辑部邮箱 ,1997年03期
- 【分类号】O657.11
- 【被引频次】1
- 【下载频次】175