| 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 |
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| 引用本文： | 徐铜文,何炳林.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[J].水处理技术,1997,23(3):125-130. |
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| 作者姓名： | 徐铜文 何炳林 |
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| 作者单位： | 南开大学高分子化学研究所 |
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| 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Ｃｕ＾２＋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。
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| 关 键 词： | 电导法 互扩散法 离子交换膜 自扩散系数 |
COMPARATIVE MEASUREMENTS OF SELF-DIFFUSION COEFFICIENTS OF CONTER-IONS WITH UNEQUAL VALENCE THROUCH A CATION EXCHANGE MEMBRANE BY CONDUCTIVITY AND INTER-DIFFUSION |
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| Xu Tongwen and He Binglin.COMPARATIVE MEASUREMENTS OF SELF-DIFFUSION COEFFICIENTS OF CONTER-IONS WITH UNEQUAL VALENCE THROUCH A CATION EXCHANGE MEMBRANE BY CONDUCTIVITY AND INTER-DIFFUSION[J].Technology of Water Treatment,1997,23(3):125-130. |
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| Authors: | Xu Tongwen and He Binglin |
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| 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. |
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| Keywords: | conductivity inter diffusion ion exchange membrane self diffusion coefficient |
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