A new chelating resin containing 2-aminothiophenol: Synthesis characterization and determination of mercury in waste water using 203Hg radiotracer |
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Authors: | S. Pramanik S. S. Bhattacharyya P. Chattopadhyay |
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Affiliation: | (1) Department of Chemistry, The University of Burdwan, Golapbag, Burdwan, 713 104, India |
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Abstract: | A new stable chelating resin was synthesized by incorporating 2-aminothiophenol into Merrifield polymer through C-N covalent bond and characterized by elemental analysis, IR and thermal study. The sorption capacity of the newly formed resin for Hg2+ as a function of pH has been studied using 203Hg radioisotope. The resin exhibits no affinity to alkali or alkaline earth metal ions and common anions. The separation of mercury(II) in presence of different alkali and alkaline earth metal ions (Na+, K+, Mg2+, Ca2+, Sr2+, Ba2+), common anions (ClO4 −, SO4 2−) and other diverse ions (Ag+, Cu2+, Pb2+, Fe3+, Ni2+ and Zn2+) has been checked. In column operation it has been observed that Hg2+ content of the waste water can be removed at usual pH of natural water. Mercury was determined by isotope dilution method and the concentration of Hg2+ in the waste water spiked with 203Hg was found to be 0.05 to 0.09 μg/ml. |
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