Synthesis and characterization of new Ligand Schiff base 2-[2- (1- carboxy – ethyldeneamino) - phenylimino]- Sodium Propaneat and study of extraction it with Zinc ion (II)

الملخص

This work included the Synthesis and characterization tetra dentate Schiff base
Ligand (Na2L) contaning (N2 and O2) as donor atoms type (N2O2) . This Ligand was
prepared by reaction of 1,2- phenylen diamine with sodium pyruvate under reflex in
methanol and drops of CH3COOH gave the Ligand (Na2L).
The extraction of zinc(II) with above ligand has been studied . The effect of
different parameters such as type of medium and time of equilibration, concentration of
metal ion, type of organic solvent and effect temperature. The function of thermodynamic
(ΔS, ΔG, ΔH) was calculated. The stoichiometry of the extract species was determined
using three methods such as slope analysis, mole retio and Job's methods and found to be
(M:L) (1:1).
The system found to be effective in separating milligram amounts of Zn(II) and in
determining trace amount of Zn(II) spectrometrically.