用乙二醛双缩(2-羟基苯胺)和铬黑T双指示剂、EDTA容量法连续滴定水中钙和镁

doi:10.16036/j.issn.1000-2650.1997.01.029

四川农业大学学报 ›› 1997, Vol. 15 ›› Issue (01): 132-137,148.doi: 10.16036/j.issn.1000-2650.1997.01.029

用乙二醛双缩(2-羟基苯胺)和铬黑T双指示剂、EDTA容量法连续滴定水中钙和镁

黄乾明, 陈华萍, 崔扬健

四川农业大学基础部, 雅安市 625014

收稿日期:1996-09-11 出版日期:1997-03-31 发布日期:2017-03-07

WITH GLYOXALBIS(2-HYDROXYANIL), [GEBT] AND ERIOCHROME BLACK T [EBT] AS TWO INDICATORS, EDTA VOLUMETRIC ANALYSIS FOR THE CONTINUOUS TITRATION OF CALIUM AND MAGNESIUM IN WATER

Huang Qianming, Chen Huaping, Cui Yangjian

Department of Basic Sciences, Sichuan Agricultural University/Yaan, Sichuan, China 625014

Received:1996-09-11 Online:1997-03-31 Published:2017-03-07

摘要/Abstract

摘要： 本文研究了用乙二醛双缩(2-羟基苯胺)[简称GBHA]和铬黑T[简称EBT]双指示剂、EDTA容量法连续滴定水中Ca²⁺和Mg²⁺的方法和滴定条件。试样分析和对照试验结果表明:本法的分析结果准确可靠,且与目前广泛采用的用钙指示剂和铬黑T为指示剂、EDTA容量法滴定水中Ca²⁺和Mg²⁺的方法相比,简化了测定手续,结果计算更直接,可用于水中Ca²⁺和Mg²⁺含量的快速测定。

关键词: 乙二醛双缩(2-羟基苯胺), 铬黑T, EDTA容量法, 滴定[34BB], 水质分析[37T, 91J], Ca²⁺和Mg²⁺含量测定, 定量分析[34BA]

Abstract: The present paper has studied EDTA volumetric analysis and its conditions for the continuous titration of calium and magnesium in water with GBHA and EBT as two indicators. The determinations of the samples and the comparative tests indicate that the results of this method are correct and dependable, and being compared with calconcarboxylic acid or EBT as the single indicator which isused widaly now, this method is more direct and faster.

Key words: GBHA, EBT, EDTA VOLUMETRIC ANALYSIS, TITRATION, WATER QUALITY ANALYSIS, DETERMINATION OF Ca²⁺ AND Mg²⁺ QUANTITY, QUANTITIVE ANALYSIS

中图分类号:

Q5-33

黄乾明, 陈华萍, 崔扬健. 用乙二醛双缩(2-羟基苯胺)和铬黑T双指示剂、EDTA容量法连续滴定水中钙和镁[J]. 四川农业大学学报, 1997, 15(01): 132-137,148.

Huang Qianming, Chen Huaping, Cui Yangjian. WITH GLYOXALBIS(2-HYDROXYANIL), [GEBT] AND ERIOCHROME BLACK T [EBT] AS TWO INDICATORS, EDTA VOLUMETRIC ANALYSIS FOR THE CONTINUOUS TITRATION OF CALIUM AND MAGNESIUM IN WATER[J]. jsau, 1997, 15(01): 132-137,148.

用乙二醛双缩(2-羟基苯胺)和铬黑T双指示剂、EDTA容量法连续滴定水中钙和镁

WITH GLYOXALBIS(2-HYDROXYANIL), [GEBT] AND ERIOCHROME BLACK T [EBT] AS TWO INDICATORS, EDTA VOLUMETRIC ANALYSIS FOR THE CONTINUOUS TITRATION OF CALIUM AND MAGNESIUM IN WATER

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