Citation: Fu You PAN, Sun Wei ZHANG. SYNTHESIS AND PROPERTIES OF 1-(2-IMIDAZOLYLAO)2-NAPHTHOL-4-SULFONIC ACID[J]. Chinese Chemical Letters, ;1991, 2(12): 917-918.
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Synthesis of 1-(2-imidazolylazo)-2-naphthol-4-sulfonic acid is described including its physical and chemical properties and spectroscopic data. The reagent reacts with various transition metal ions to form water-soluble and colored chelates which can be decomposed by EDTA exoept cobalt chelate. Present method has good selectivity.
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