A new colorimetric reagent for zinc
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John H. Yoe; Richard M. Rush
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Article
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1952
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Elsevier Science
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English
β 155 KB
During an investigation of a number of organic compounds for their reactivity towards inorganic ions, the compound o-[a-(2-hydroxy-5-sulfophenylazo)-benzilidcnehydrazino] benzoic acid was noted to give a dark blue precipitate with zinc and also reactions with copper, cobalt, and nickel. The heavy pr