1950
DOI: 10.1002/zaac.19502630403
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Die Darstellung reiner Thorium‐ und Cer‐Verbindungen durch Ausschütteln wässeriger Nitratlösungen mit organischen Lösungsmitteln

Abstract: Durch Ausschütteln von Cer(IV)‐nitratlösungen mit Äther bei HNO3‐Konzentrationen >4,5 n läßt sich Ce weitgehend frei von Verunreinigungen in hoher Ausbeute gewinnen. Thoriumnitrat kann aus schwach salpetersauren Lösungen bei Gegenwart gewisser anderer, in hoher Konzentration zugesetzter Nitrate mit verschiedenen organischen Lösungsmitteln ausgeschüttelt und in großer Reinheit erhalten werden. Auch Scandiumnitrat kann man aus wässeriger Lösung extrahieren, wenn diese LiNO3 in sehr hoher Konzentration enthält. D… Show more

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Cited by 58 publications
(3 citation statements)
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“…05 with ammonium hydroxide (534) In general, scandium will elute faster than the fastest of the rare-earth elements (Lu) and actinium will elute slower than the slowest (La). 38 a 1. 0 mg Sc-3.…”
Section: Wilkinson and Hicksmentioning
confidence: 99%
“…05 with ammonium hydroxide (534) In general, scandium will elute faster than the fastest of the rare-earth elements (Lu) and actinium will elute slower than the slowest (La). 38 a 1. 0 mg Sc-3.…”
Section: Wilkinson and Hicksmentioning
confidence: 99%
“…The postulated complexes for HC1 solutions of Pb(II) and Bi(III) (with charge more negative than minus one) are in agreement with these earlier conclusions since negligible solvent extraction is found for these elements.24 Moderate extraction of Bi(III) from nitric acid solutions has been found,26 which would indicate that these considerations relating anion-exchange and solvent extraction are also applicable for nitrate solutions. However, in this extension caution appears indicated since slight extraction from nitric acid solutions has also been reported for Pb(II) 25 where solvent extraction apparently could not proceed by the same mechanism.…”
Section: Resultsmentioning
confidence: 81%
“…In the second separation the 22STh as nitrate was extracted by washing with ethyl acetate (Bock 1950).…”
mentioning
confidence: 99%