SOLVENT-EXTRACTION STUDIES ON TETRAVALENT SELENIUM

Faculty	Science	Year:	1993
Type of Publication:	Article	Pages:	401-406
Authors:	ELKOT, AM, MOHAMED, AA	DOI:	10.1007/BF02219863
Journal:	JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY-ARTICLES AKADEMIAI KIADO	Volume:	171
Research Area:	Chemistry; Nuclear Science \& Technology	ISSN	ISI:A1993LQ67200011
Keywords :	SOLVENT-EXTRACTION STUDIES , TETRAVALENT SELENIUM
Abstract:	A systematic study has been carried out on the extraction of SeI4, by various water-immiscible organic solvents. Extraction has been investigated as a function of H2SO4 and KI concentrations. It has been found that Se(IV) extraction is appreciably increased by addition of iodide ion to sulfuric acid solutions. On the other hand, the presence of water-miscible alcohols and acetone was found to enhance Se(IV) extraction from H2SO4-KI solutions. In the light of the results, an extraction mechanism is suggested.
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