Analytical applications of 2,4-dihydroxyacetophenone-p-phenylenediamineformaldehyde based resins

Research Article

Manisha M. Jiwatode1, Kiran P.

Abstract

The present paper reports the synthesis and ion exchange properties of resin. The resin(2,4DHAPDF) was synthesized by condensation 2,4 dihydroxy acetophenone (2,4 –DHA) and p-Phenylenediamine (PD )with formaldehyde (F) in the presence of catalyst HCl. Chelating ion exchange properties have been studied for heavy metal ions viz.Co2+, Hg2+, Cd2+ and Pb2+ by employing a batch equilibrium method. It was employed to study the selectivity of metal ion uptake involving the measurements of distribution of a given metal ion between the polymer sample and a solution containing the metal ion. The study was carried out over a wide pH range and in media of various ionic strengths. The overall rate of metal uptake follows the order: Co+2 > Cd+2 > Pb+2 > Hg+2.

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