A new Guar gum-based
resin containing 4,5–Dihydroxy-1,3-Benzene disulphonic acid group and its use in
the separation of Ni(II) and Cd(II) as toxic metal ions from aqueous solution
Rathore Monika and Singh Aresh Vikram
Res. J. Chem. Environ.; Vol. 29(3); 107-113;
doi: https://doi.org/10.25303/293rjce1070113; (2025)
Abstract
The Porath’s method was used for preparation of Guar gum 4,5-dihydroxy-1,3-Benzene
disulphonic acid (GDHBDSA) resin. The parent polymer guar gum was extracted from
the seeds of Leguminosae plant Cyamopsis tetragonolobus which is a galactomannan.
The GDHBDSA resin was characterized by FT-IR spectra, elemental analysis, pH titration,
density, moisture contents, ion exchange capacity and Scanning electron microscopy.
The distribution coefficients (Kd) values of various toxic metal ions i.e. Ni(II)
and Cd(II) were estimated by Atomic absorption spectrophotometer. The batch method
was used for separation of toxic metal ions from aqueous solution.
