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- W73679050 abstract "A mixture of isoamylphosphoric and isoamylpyrophosphoric acids was obtained by reacting isoamyl alcohol with P/sub 2/0/sub 5/- A 20 vol.% solution of this extractant in benzene or toluene was used to develop a simple, effective method of separating indium from tin. The tracers In/sup 114/ and Sn/sup 113/ s/sup 123/ were used to follow the course of the extraction. It was found that indium extracts with a very high distribution coefficient from even 10 N H/ sub 2/SO/sub 4/ and higher, while divalent tin remains almost quantitatively in the aqueous phase. The separation coefficient is 10/sup 6/ during the extraction. The indium can be back-extracted with a small amount of 6 to 9 N HCl with a 10- to 20-fold concentration of indium. The method gives sharp separations even when the ratio of Sn to In is varied from 10: 1 to 10:5000. Tetravalent tin can be removed by washing with an HF solution. Analogous results were obtained with di- (2-ethyl) hexyl phosphoric acid. The method can be employed as an analytical method or as an industrial process. (TTT)" @default.
- W73679050 created "2016-06-24" @default.
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- W73679050 date "1961-06-21" @default.
- W73679050 modified "2023-09-26" @default.
- W73679050 title "THE SEPARATION OF INDIUM AND TIN BY ALKYLPHOSPHORIC ACIDS" @default.
- W73679050 hasPublicationYear "1961" @default.
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