• Fluorescence reactions with boric acid andO-hydroxy-carbonyl compounds, and their application in analytical chemistry - Part IV. Azo-dyes fromo-Hydroxy-carbonyl compounds

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      https://www.ias.ac.in/article/fulltext/seca/023/01/0016-0022

    • Keywords

       

      Salicylic Acid; Boric Acid; orangeII; Fluorescence Effect; Fluorescence Reaction

    • Abstract

       

      The introduction of the azo-group into the molecule of ano-hydroxycarbonyl compound does not invariably produce a negative result in the fluorescence test with boric acid carried out under filtered U.V. light. Fluorescence intensification on the addition of boric acid is observed in several cases, though there is a marked diminution in the intensity of the effect when compared with the parento-hydroxy-carbonyl molecule.

      The fluorescence test for theortho-orientation of the hydroxyl and carbonyl groups is also applicable to the azo-dyes but a negative result does not prove the contrary.

    • Author Affiliations

       

      K Neelakantam1 M V Sitaraman1

      1. Departments of Chemistry, Andhra University and Presidency College, Madras
    • Dates

       
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