Recommanded Product: 1452-77-3. Aromatic heterocyclic compounds can also be classified according to the number of heteroatoms contained in the heterocycle: single heteroatom, two heteroatoms, three heteroatoms and four heteroatoms. Compound: Picolinamide, is researched, Molecular C6H6N2O, CAS is 1452-77-3, about Understanding the extraction behaviour of UO2+2 and Th4+ using novel picolinamide/N-oxo picolinamide in ionic liquid: A comparative evaluation with molecular diluent. Author is Das, Debasish; Hashmi, Sabiha; Sengupta, Arijit; Kannan, S.; Kaushik, C. P..
The manuscript deals with efficient separation of hexavalent UO2+2 and tetravalent Th4+ from aqueous acidic waste solution in green way using ionic liquid with novel picolinamide (L I) and N-oxo picolinamide (L II) based ligands. A comparative evaluation was carried out to understand the extraction mechanism, kinetics, thermodn., speciation, radiolytic stability and stripping behavior of UO2+2 and Th4+ in ionic liquid vis-a-vis mol. diluent. The investigation demonstrates the predominance of cation exchange mechanism in ionic liquid and solvation mechanism in n-dodecane based systems. The slower extraction kinetics in ionic liquid was attributed to the viscosity effect. The extractive mass transfer processes were found to be spontaneous, endothermic and entropically driven in nature. The picolinamide and N-oxo picolinamide ligands were found to form inner-sphere complexes in ionic liquid as well as n-dodecane. The CO2-3 was more effective aqueous phase complexing agent to back extract UO2+2, while C2O2-4 exhibited the same for Th4+.
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Reference:
Tetrahydroisoquinoline – Wikipedia,
1,2,3,4-Tetrahydroisoquinoline | C9H11N – PubChem