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| 5-Br-PADAT和3,5-Br_2-PADAT作为络合滴定指示剂的应用 | |
| 引用本文： | 陈朝湘,郭汉彬,陈焕光. 5-Br-PADAT和3,5-Br_2-PADAT作为络合滴定指示剂的应用[J]. 冶金分析, 2000, 20(4): 1-1 |
| 作者姓名： | 陈朝湘 郭汉彬 陈焕光 |
| 作者单位： | 1. 石溪水厂化验室,广州,510280 2. 陈李济药厂,广州,510030 3. 中山大学化学系,广州,510275 |
| 摘 要： | 研究了 5 [(5 溴 2 吡啶 )偶氮 ] 2 ,4 二氨基甲苯和 5 [(3,5 二溴 2 吡啶 )偶氮 ] 2 ,4 二氨基甲苯作为直接滴定铜和以铜为回滴剂的指示剂的应用 ,以及以前者为指示剂滴定铜与锌等离子总量 ,并借助掩蔽剂以提高选择性 ,成功应用于铜合金等样品的分析。 |
| 关 键 词： | -[(-溴--吡啶)偶氮]- -[( -二溴--吡啶)偶氮]- 络合滴定 指示剂 铜 |
Application of 5-(5-Bromo-2-pyridylazo)-2,4-diaminotoluene (5-Br-PADAT) and 5-(3,5-Dibromo-2-pyridylazo)-2,4-diaminotoluene(3,5-diBr-PADAT) as Metallochromic Indicators |
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| CHEN Chao-xiang,GUO Han-bin,CHEN Huan-guang. Application of 5-(5-Bromo-2-pyridylazo)-2,4-diaminotoluene (5-Br-PADAT) and 5-(3,5-Dibromo-2-pyridylazo)-2,4-diaminotoluene(3,5-diBr-PADAT) as Metallochromic Indicators[J]. Metallurgical Analysis, 2000, 20(4): 1-1 | |
| Authors: | CHEN Chao-xiang GUO Han-bin CHEN Huan-guang |
| Abstract: | The application of 5 Br PADAT and 3,5 diBr PADAT as metallochromic indicators in the direct titration of copper, the back titration with copper as the back titrant and the direct titration of the sum of copper and zinc etc. has been thoroughly investigated. The indicators have been successfully used for the analysis of copper alloys etc. |
| Keywords: | Bromo 2 pyridylazo) 2 4 diaminotoluene 5 (3 5 Dibromo 2 pyridylazo) 2 4 diaminotoluene Complexometric titration Indicator Copper |
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