Separation Of Europium Research Articles

Separation of europium III and americium III by solvent extraction of their metal chelate complexes

Separation of Eu 3+ and Am 3+ by solvent extraction has been studied. The distribution of chelate complexes of these metal ions between 0.1 M sodium perchlorate and chloroform or methylisobutylketone with nineteen chelating acids has been determined. Among these acids it was observed that some extract Eu 3+ into the organic phase better than Am 3+, some extract Am 3+ better, and some extract them equally well. The separation factor, SF = D Eu/ D Am, was determined for twelve of these acids by the extraction of Eu 3+ and Am 3+ from 0.1 M (H,Na)ClO 4. The values of log SF are as follows: dibutylphosphate (DBF), + 1.36; dioctylphosphate (DOP), +1.15; 1-phenyl-3-methyl-4-acetylpyrazolone-5, + 0.54; 2-thenoyltrifluoracetone(TTA), +0.48; neocupferron,+0.24; N-benzoylphenylhydroxylamine, +0.22; N-2,4-dichlorobenzoylphenylhydroxylamine, + 0.12; β-isopropyltropolone (IPT), −0.01; 1-hydroxy-2-naphthoic acid, +0.03; 2-hydroxy-1-naphthoic acid, + 0.01; 3-hydroxy-2-naphthoic acid; −0.02; 5,7-dichloroxine, −0.99. From these results it follows that dialkylhydrogenphosphates and 5,7-dichloroxine are the most suitable chelating acids for the separation of Eu 3+ and Am 3+ by solvent extraction.

Separation of Europium from other Rare Earths by the “Oxine‐Sulfonic Acid Method”

AbstractA mixed ammoniacal solution of oxine‐sulfonic acid, samarium, europium and a small amount of gadolinium nitrate was electrolytically reduced using a platinum cathode in the presence of acetic acid. Europium was quantitatively precipitated with very little samarium (estimated at‐1 or 2%). The other earths remaind in solution.The greenish yellow precipitate corresponded to the formula, H2 (Eu‐(C9H5NOSO3)2)·4H2O.

The Separation of Europium from Samarium by Electrolysis1

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTThe Separation of Europium from Samarium by Electrolysis1E. I. OnstottCite this: J. Am. Chem. Soc. 1955, 77, 8, 2129–2132Publication Date (Print):April 1, 1955Publication History Published online1 May 2002Published inissue 1 April 1955https://doi.org/10.1021/ja01613a027RIGHTS & PERMISSIONSArticle Views107Altmetric-Citations27LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InReddit PDF (529 KB) Get e-Alerts Get e-Alerts

The Electrolysis of Rare Earth Acetates and the Separation of Europium as Amalgam from Other Rare Earths

The Electrolysis of Rare Earth Acetates and the Separation of Europium as Amalgam from Other Rare Earths