2-[2-(5-Chloropyridyl)azo]-5-dimethylaminophenol as indicator for the complexometric determination of zinc |
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| Authors: | Marchevsky E Olsina R Marone C |
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| Institution: | Universidad Nacional de San Luis, Chacabuco y Pedemera, 5700-San Luis, Argentina. |
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| Abstract: | 2-2-(5-Chloropyridyl)azo]-5-dimethylaminophenol (C1DMPAP) is proposed as a metallochromic indicator for zinc. The end-point colour change is from the violet-red of the zinc complex to the brownish-yellow of the indicator. The colour contrast is markedly greater than that for Erio-T. |
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