Bestimmung von Niob- und Zirkoniumspuren in Titandioxid und in Ilmenit

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Bestimmung von Niob- und Zirkoniumspuren in Titandioxid und in Ilmenit

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Chemistry Clinical Biochemistry General Materials Science General Medicine Biochemistry Analytical Chemistry Nuclear chemistry

description

Zur Bestimmung von Niob- und Zirkoniumspuren in Titandioxid und in Ilmenit werden die Proben mit Borsaure und Natrium-Kaliumcarbonat aufgeschlossen; die Schmelze wird in 8 N HCl gelost und Eisen(III) mit Di-i-propylather ausgeschuttelt. Dann reichert man Niob und Zirkonium gemeinsam durch Ausschutteln mit Tri-n-octylphosphinoxid in Cyclohexan an, entfernt beide Elemente mit wasriger Oxalsaurelosung aus der organischen Phase und bestimmt sie durch Rontgenfluorescenz oder Photometrie mit Sulfochlorphenol S (Nb) bzw. Arsenazo III (Zr).

year	journal	country	edition	language
1975-01-01	Fresenius' Zeitschrift f�r Analytische Chemie

https://doi.org/10.1007/bf00440392

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