Synthesis and characterization of new Ligand Azo 2,2[O-Tolidine--4,4-bis azo ]bis[4,5-diphenyl imidazole and Liquid – Liquid extraction of Cobalt ion (II)
journal of kerbala university,
2012, Volume 8, Issue 0, Pages 73-87
AbstractThe present paper reports the preparation of the New Ligand of azo imidazole 2,2[O-Tolidine-4,4-bis azo ] bis [4,5-diphenyl imidazole, by reacting adiazonium salt of O-Tolidine with the starting material (4,5-diphenyl imidazole ) . Utility of (MBBAI) was extracting reagent in the solvent extraction of the CoII was investigated, The effect of different parameters on the percent of extraction &extraction coefficient such as type of medium ; time of equilibration , concentration of metal ; reagent, type of solvent , effect of batch extraction , salting out , effect of some cations & anions effect of temperature . The function of thermodynamic parameter of (∆H,∆G,∆S)were calculated . The stoichiometry of the extraction is determined using tow methods Mol ratio method & Jobs′ method. It was found to be (M:L) (1:2) . The stability constant of complex in Mol ratio method was calculated . The study of UV-Visible & FT-IR spectra were studied both of reagent & complex in organic phase . At last the new study for determination of Co (II) ion organic phase was began .
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