2-(2-THIAZOLYLAZO)-4-METHYL-5-(SULFOMETHYLAMINO)BENZOIC ACID AS METALLOCHROMIC INDICATOR FOR NICKEL
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概要
- 論文の詳細を見る
Some thiazolylazo- and pyridylazobenzoic acids were studied for the metallochromic indicator in EDTA titration of nickel:2-(2-thiazolylazo)-4-methyl-5-(sulfomethylamino) benzoic acid (TAMSMB), 2-(5-bromo-2-thiazolylazo)-4-methyl-5-(sulfomethylamino) benzoic acid (5-Br-TAMSMB), 2-(2-thiazolylazo)-5-(N-ethyl-N-sulfomethylamino)-benzoic acid(N-Et-TASMB) and 2-(3,5-dichloro-2-pyridylazo)-4-methyl-5- (sulfopropylamino) benzoic acid (3,5-diCl-PAMSPB). The formation constants of the nickel chelates with these reagents and the rate of the substitution reaction of nickel-TAMSMB chelate with EDTA were determined. TAMSMB is an excellent indicator for nickel because of the good color contrast between indicator and the nickel chelate, the large rate of color change reaction at equivalence point and the easy preparation of the reagent.
- 社団法人日本分析化学会の論文
- 1983-07-05
著者
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Wada Hiroko
Laboratory Of Analytical Chemistry Nagoya Institute Of Technology
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Ishizuki Tomosuke
Laboratory Of Analytical Chemistry Nagoya Institute Of Technology
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NAKAGAWA Genkichi
Laboratory of Analytical Chemistry, Nagoya Institute of Technology
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Nakagawa Genkichi
Laboratory Of Analytical Chemistry Nagoya Institute Of Technology
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Wada Hiroko
Laboratory of Analytical Chemistry, Nagoya Institute of Technology
関連論文
- 2-(2-THIAZOLYLAZO)-4-METHYL-5-(SULFOMETHYLAMINO)BENZOIC ACID AS METALLOCHROMIC INDICATOR FOR NICKEL
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