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Inclusion properties of 3-amino-5-methypyrazole towards some metal cations

Olfa Naouali, Abdelwaheb Hamdi, Raoudha Abderrahim, Lassaad Baklouti

The inclusion properties of 3-amino-5-méthypyrazole (pyrazole) toward the alkali, alkaline earth cations, some transition, heavy metals and some lanthanides have been investigated in acetonitrile and methanol, followed by UV Spectrophotometry Absorption and conductivity. Thus, the stoichiometries of complexes formed and their stability constants were determined by digital processing of data. The results of liquid-liquid extraction show that the ligand extracted only a Cs+ and Mg2+ in the series of the picrate salts considered.