Journal of the Serbian Chemical Society · 2014 · 12 citations · 1 references
Natural SciencesChemical EngineeringChemistryAnalytical ChemistryChemical KineticsInorganic ChemistryCoordination ChemistryMetal-ligand BondingSolution ChemistryTransition Metal ComplexesChemical Equilibrium ConstantsComplexation ChemistryEquilibrium ConstantsExtraction EquilibriaInorganic SaltsMetal Ion ExtractionOptimum TemperatureSolvent Extraction Chemistry
The formation and liquid-liquid extraction of ion-association complexes between Co(II)-4-(2-Pyridylazo)resorcinol (PAR) anionic chelates and cations of three ditetrazolium chlorides were studied: Blue Tetrazolium chloride (BTC), Neotetrazolium chloride (NTC) and Nitro Blue Tetrazolium chloride (NBT). The optimum conditions for the formation and solvent extraction of the ion-association comlpex chelates were determined. It has been found that in the systems of Co(II)-PAR-DTS, the reactants are reacted in molar ratios 1:2:1 and the general formula of complexes was suggested. The extraction equilibria were investigated and quantitatively characterized by the equilibrium constants and the recovery factors. The analytical characteristics of the complexes were calculated.
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