Selective Sorption of Heavy Metal Ions from Aqueous Solutions Using m-Cresol Based Chelating Resin and Its Analytical Applications

Salicylic acid-formaldehyde-m-cresol (sfm) terpolymer had been synthesized in dmf mediaby conventional method. the resulting resin had been characterized by ftir spectra, elemental andthermogravimetric analyses. the morphology of sfm resin had been studied by sem and optical photograph.various parameters like rate of equilibration, effect of ph on ion exchange capacity and effect of concentrationon ion exchange capacity had been studied. the maximum sorption capacities at 0.05m concentration forni(ii) and cu(ii) were 0.7905 (ph-6.0) and 0.6315 (ph-5.5) mmol/g of dry resin respectively. the distributioncoefficient (kd ) for five metal ions [ni(ii), cu(ii), zn(ii), cd(ii) and pb(ii) ] were determined in variousconcentration of tartaric acid electrolyte at different ph. the quantitative separations of heavy metal ions andtransition metal ions from their admixtures [cu(ii)- pb(ii), pb(ii)- zn(ii), ni(ii)- cd(ii)] had been performedby using distribution coefficient (kd ).