| EDTA配位滴定法中两种指示剂的改进 |
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| 引用本文： | 焦德权. EDTA配位滴定法中两种指示剂的改进[J]. 天津化工, 2007, 21(4): 51-52 |
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| 作者姓名： | 焦德权 |
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| 作者单位： | 天津师范大学化学与生命科学学院,天津,300074 |
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| 摘 要： | 采用EDTA配位滴定分析法，对于测定钙、镁离子含量及钙含量所使用的指示剂进行改进。发现钙指示剂一萘酚绿B于pH=12时，EDTA配位滴定钙；以及酸性铬蓝K—铬黑T-萘酚绿B为指示剂于pH=10时，EDTA配位滴定钙、镁含量均具有良好地测定结果，指示剂变色敏锐、实验现象明显。
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| 关 键 词： | 滴定分析 钙 镁 混合指示剂 |
| 文章编号： | 1008-1267（2007）04-0051-02 |
| 修稿时间： | 2007-03-27 |
Improvement of two indicators in titration analysis of the EDTA |
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| JIAO De-quan. Improvement of two indicators in titration analysis of the EDTA[J]. Tianjin Chemical Industry, 2007, 21(4): 51-52 |
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| Authors: | JIAO De-quan |
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| Affiliation: | College of Chemistry and Life Science, Tianjin Normal University, Tianjin 300074, China |
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| Abstract: | Two indicators in titration analysis of calcium and magnesium with EDTA were improved in this paper. It was proved that the new indicators had been obtained satisfaction results in the determination. The indicators'color changes quickly and phenomena are obvious. |
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| Keywords: | EDTA |
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