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Synthesis and Applications of New Tamarind 1-Amino-2-naphthol-4-sulphonic Acid (TANSA) Resin

A. V. Singh and Monalisa

A new polysaccharide chelating resin was synthesized by anchoring 1-amino-2-naphthol-4- sulfonic acid. The synthesized resin was characterized by FTIR and elemental analysis by Atomic Absorption spectroscopy. The various physicochemical properties of the resin were examined and found that resin is stable in acidic as well as basic medium. Because of it's greater selectivity and higher exchanger properties (chelating ion exchangers as well as weakly acid cation exchanger), tamarind 1- amino-2-naphthol-4-sulfonic acid (TANSA) resin finds tremendous applications in waste water treatment and quantitative results have been given for removal of heavy metals from the reference solutions. The distribution coefficients of Fe2+, Pb2+, Cu2+ and Cd2+ at different pH were systematically studied using batch equilibration method.