Spectrophotometric determination of ionization constants of some 8-hydroxyquinoline azo dyes
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چکیده
منابع مشابه
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The study of a UV-VIS spectrum of 8-hydroxyquinoline (8HQ) in different solvents can provide relevant information concerning the influence of the medium on the electronic structure of the solute or the nature and strength of the specific solvent-solute intraor intermolecular interactions. The electronic absorption spectra of 8-hydroxyquinoline in various solvents have very different features du...
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Tantalum(V) reacts with 5-iodo-8-hydroxyquinoline-7-sulphonic acid to form a yellowish coloured complex having maximum absorbance at 405 nm in citric acid medium. The relatively slow reaction at room temperature is completed in 10 minutes at 40 °c. The colour is stable for at least 12 hr. Effects of heating temperature, time, pH, reagent concentration and other variables have been studied. The ...
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ژورنال
عنوان ژورنال: Communications, Faculty Of Science, University of Ankara Series B Chemistry and Chemical Engineering
سال: 1984
ISSN: 1303-6017
DOI: 10.1501/commub_0000000512