| 希托夫法测定离子迁移数实验的改进 |
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| 引用本文： | 沈丽,赵亚萍,竺海能,咸春颖.希托夫法测定离子迁移数实验的改进[J].实验室科学,2014(6):29-30. |
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| 作者姓名： | 沈丽 赵亚萍 竺海能 咸春颖 |
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| 作者单位： | 东华大学化学化工与生物工程学院基础实验中心; |
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| 摘 要： | 希托夫法是测定离子迁移数的一种常用方法,为适应学生实验对时间和评测的要求,对希托夫法测定离子迁移数的实验设备、实验和计算过程进行了一定的改进和完善,在阴阳极和中间区域增加了三通活塞,方便赶除气泡,选择滴定阴极或者阳极其中一个极区的溶液以保证实验时间安排的合理性,并在初步实验过程中取得了良好的实际效果。
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| 关 键 词： | 希托夫法 离子迁移数 学生实验 |
Improvement of Hittorf method of determining ion transference numbers |
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| SHEN Li,ZHAO Ya-ping,ZHU Hai-neng,XIAN Chun-ying.Improvement of Hittorf method of determining ion transference numbers[J].Laboratory Science,2014(6):29-30. |
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| Authors: | SHEN Li ZHAO Ya-ping ZHU Hai-neng XIAN Chun-ying |
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| Institution: | ( Experimental Center of Fundamental Chemistry, College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, China) |
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| Abstract: | Hittorf method is a traditional method to determine ion transference numbers. We have modified the apparatus, experimental and calculation procedures of Hittorf method to adapt to the requirements in terms of time and judgment for student experiment. Three way pistons were added between anode, cathode and the middle part in order to remove the bubbles. One of the anode or cathode solutions were chosen to be titrated to make sure the reasonable experiment time frame. The modifications have been proved effective and successful in experiments. |
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| Keywords: | Hittorf method ion transference numbers student experiment |
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