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

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.

Author(s): Manisha M. Jiwatode1, Kiran P. Kariya2* and Baliram. N. Berad1

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