| Autor: |
N. S. MacDonald, S.T. Wakakuwa, R.A. Wood |
| Rok vydání: |
1972 |
| Předmět: |
|
| Zdroj: |
Journal of Inorganic and Nuclear Chemistry. 34:3517-3522 |
| ISSN: |
0022-1902 |
| Popis: |
An analytical method was developed for the rapid and carrier-free separation of 2·81 d 111 In produced by the reactions 109 Ag(He 4 , 2 n ) 111 In and 110 Cd( d . n ) 111 In. The method is based upon the fact that indium in the presence of macro-concentrations of Ag(I) and Cd(II) preferentially extracts into n -heptane solutions of bis (2-ethylhexyl) hydrogen phosphate (HDEHP) from aqueous nitric acid media. The Ag(I) and Cd(II) remain quantitatively in the aqueous phase. The distribution ratios ( K ) vary from greater than 10 3 for In(III) to less than 10 −2 for Ag(I) and Cd(II). The indium is quantitatively stripped from the solvent phase with HCl. The total separation time is less than 10 min. In the present investigation K has been studied with respect to acid-solvent dependence, equilibration, and back extraction. Optimum conditions for maximum extraction have been determined. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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