Studies on oxine and its derivatives : The sensitivity and selectivity of some 7-substituted 8-hydroxyquinoline-5-sulphonic acids and some 2-substituted 8-hydroxyquinoline-4-carboxylic acids towards certain metals

Add time:09/10/2019    Source:sciencedirect.com

A number of new derivatives of 8-hydroxyquinoline containing both solubilising groups and groups which might sterically hinder chelation have been prepared, viz. 8-hydroxy-7-morpholino-methylquinoline-5-sulphonic acid, 8-hydroxy-7-piperidinomethylquinoline-5-sulphonic acid, 8-hydroxy-2-(3,4-dimethoxyphenyl)-quinoline-4-carboxylic acid, 8-hydroxy-2-n-hexylquinoline-4-carboxylic acid and 8-hydroxy-2-(i-ethylpropyl)-quinoline-4-carboxylic acid. The limiting sensitivities of the reactions of these reagents towards copper, nickel, aluminium, zinc, magnesium, gallium, indium, thallium, yttrium, cadmium, cobalt and iron have been investigated

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