| 3,5-diBr-PADAP作为铁和铜配位滴定指示剂的研究 |
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| 引用本文： | 付佩玉,曹伟,张鞠华,缪洪波.3,5-diBr-PADAP作为铁和铜配位滴定指示剂的研究[J].耐火材料,1999(3). |
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| 作者姓名： | 付佩玉 曹伟 张鞠华 缪洪波 |
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| 作者单位： | 山东建材工业学院应用化学系 |
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| 摘 要： | 研究了３，５ｄｉＢｒＰＡＤＡＰ作配位滴定的指示剂，在ｐＨ１．８～２．０时用ＥＤＴＡ标准溶液滴定铁（Ⅲ）；在滴定铁（Ⅲ）后的溶液中，加入对Ａｌ３＋过量的ＥＤＴＡ标准溶液，在ｐＨ３．８～４．０时与Ａｌ３＋生成稳定的络合物，调至ｐＨ５．０，用氟化铵置换出Ａｌ－ＥＤＴＡ配合物中的ＥＤＴＡ，用硫酸铜标准溶液滴定，测定铝
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| 关 键 词： | 铁，铝，3.5-diBr-PADAP，配位滴定 |
Study on 3,5diBrPADAP as an indicator for iron and copper in complexometric titration |
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| Fu Peiyu,Cao Wei,Zhang Juhua.Study on 3,5diBrPADAP as an indicator for iron and copper in complexometric titration[J].Refractories,1999(3). |
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| Authors: | Fu Peiyu Cao Wei Zhang Juhua |
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| Abstract: | 3,5diBrPADAP as a new indicator for iron and copper in complexometric titration is investigated The result shows that the endpoint of the titration of iron with the EDTA is found at pH 1820 The solution is boiled at pH 3840, the overmuch EDTA is added, the complex of Aluminium and EDTA is formed at pH 50 The EDTA of AlEDTA is displaced with NH4F, and then the titration of EDTA with CuSO4 is done. The method has been used for the determination of Aluminium |
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| Keywords: | Iron Aluminium 3 5diBrPADAP complexometric Titration |
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