Four synthesized resins (AFR, PFR, SFM, and AFM), derived from o-substituted benzoic acid were used for adsorption of sodium ion. It is in the range of 5.50 mmol/g to 7.76 mmol/g. pH study reveals that resins exhibit a good sodium exchange capacity above pH 12.0. Thermal stability of resins show that the sodium exchange capacity remains unaltered up to 373 K. Langmuir isotherm and Freundlich isotherm was used for sorption of three metal like Cu(II), Zn(II) and Pb(II). The adsorption follows Freundlich isotherm model and Langmuir isotherm for all four resins.. These resins were used for chromatographic column separation of Cu(II) and Zn(II) from brass sample using distribution coefficient value (Kd). The resin was experienced for separation of ternary synthetic mixture of [Cu(II)-Zn(II)-Pb(II)]. The developed procedure was also tested for the removal of Cd(II) and Pb(II) from natural water of Purna river near by Navsari, Gujarat, India.
