Microwave synthesis of some substituted pyridazinones and their effect on the extraction efficiency of Pb(II) and Cd(II)

In this work,we study the extraction efficiency of lead (ii) and cadmium (ii) from an aqueous solution using some n-substituted pyridazines compounds synthesized by the solid-liquid phase transfer catalysis conditions without any solvent using a maxidigest mx 350 prolabo microwave monomode reactor fitted with a rotational system. the extraction of heavy metals ions was carried out by liquid-liquid extraction from an aqueous solution (7.10-5 m) by an organic solution of pyridazinic compounds in dichloromethane (7.10-5 m). the percentage of extraction was measured by atomic absorption spectrometry using air-acetylene flame atomization. our results show a significant affinity to pb (ii) against cd (ii).