Extraction of Silver (I) from Aqueous Solutions by 2-[(4-Chloro-2-Methoxy phenyl) azo]-4,5-diphenyl imidazole
Abstract
Extraction procedures for Ag+ from aqueous solutions by 2-[(4-Chloro-2-Methoxy phenyl) azo]-4,5-diphenyl imidazole (4-ClMePADPI) shows aqueous solutions must be at  (pH=10) and concentration of Ag+ ions is (40µg)(7.36×10-5 M), with shaking time (10minutes), organic solvents effect on extraction method demonstrate there is not any linear relation between dielectric constant (ε) for organic solvents used and distribution ratio values (D), but there is effect for structure of organic solvent. Stoichiometry studies shows more probable structure of ion pair complex extracted was (1:1) (Metal:Ligand) [Ag(4-ClMePADPI)]+NO3-, temperature effect shows from thermodynamic viewpoint the reaction between Ag+ ions and ligand (4-ClMePADPI) was endothermic reaction, synergism studies appear there is one molecules of TBP participate in ion pair complex extracted [Ag(4-ClMePADPI)(TBP)]+NO3-.
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Copyright (c) 2022 Jihan Razak Mosslem, Ghosoon Fadhee Hameed, Sahar Aqeel Hussein
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