Rate of solvent extraction of chromium(III) in aqueous solutions with 2-thenoyltrifluoroacetone into chloroform
Yamada, M; Honda, N; Takasugi, R; Sekine, T
| HERO ID | 1972033 |
|---|---|
| In Press | No |
| Year | 1999 |
| Title | Rate of solvent extraction of chromium(III) in aqueous solutions with 2-thenoyltrifluoroacetone into chloroform |
| Authors | Yamada, M; Honda, N; Takasugi, R; Sekine, T |
| Volume | 6 |
| Page Numbers | 41-50 |
| Abstract | The rate of solvent extraction of chromium(III) in aqueous nitrate solutions which contained 2-thenoyltrifluoroacetone(Htta), acetate buffer and ascorbic acid has been studied. The aqueous solution prepared was left standing for varying time intervals before agitation with chloroform. The chromium(III) complex extracted was then measured. The amount of chromium(III) extracted was larger when hydrated Cr3+ was initially present in the aqueous solution than when chromium(III) was produced by reduction of chromium(VI) in the aqueous solution. The extracted complex was assumed to be tris(thenoyltrifluoroacetonato)chromium(III) by spectrophotometry. This was quite different from extraction with acetylacetone which formed the extractable complex more rapidly when the chromium(III) was produced by reduction of chromium(VI) than when it was initially added in the form of hydrated Cr3+. The extraction with Htta proceeded more quickly when complex formation with this extractant took place in the aqueous phase followed by chloroform extraction than when the extractant is initially present in the chloroform and the aqueous solution containing chromium(III) was immediately agitated with the solvent. |
| Wosid | WOS:000085274900005 |
| Is Certified Translation | No |
| Dupe Override | No |
| Comments | Journal:SOLVENT EXTRACTION RESEARCH AND DEVELOPMENT-JAPAN 1341-7215 |
| Is Public | Yes |