| Title |
Extraction Characteristic and Stoichiometric Relation of Indium with Versatic Acid - 10 |
| Authors |
김성언(Sung Gyu Kim),이화영(Hwa Young Lee) |
| ISSN |
1738-8228(ISSN), 2288-8241(eISSN) |
| Abstract |
The extraction characteristic and stoichiometric relation for the solvent extraction of indium from sulfuric acid solution was studied with Versatic Acid-10. The results showed that the extraction efficiency of indium increased with increasing pH of solution and concentration of Versatic Acid-10 as extractant. And, up to 45℃, the higher reaction temperature was, the more indium was extracted. On the other hand, the indium was extracted by solvated organo-metal compound with one molecule of the Versatic Acid-10 monomer like [In(OH)R₂·RH] and the extracted species were not associated with each other. The extraction relation and equilibrium constant would be as follows : [In(OH)^(2+)]_(aq)+3/2[R₂H₂]_(org)=[In(OH)R₂·RH]_(org)+2[H^+]_(aq), Kc=3.31×10^(-6) at 18℃. |