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Studies in qualitative inorganic analysis. XIX

The separation of magnesium by solvent extraction of its oxine complex

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Summary

A procedure for the separation of magnesium in the final (soluble) Group of the systematic qualitative semimicro inorganic analysis scheme is described which uses a solvent extraction technique with 8-hydroxy-quinoline in chloroform. Magnesium is detected in the ignition residue of the extract by means of the Titan yellow test. The method has several advantages over other means for the separation of magnesium in qualitative analysis.

Zusammenfassung

Ein Verfahren für die Abtrennung des Magnesiums von der letzten Gruppe des systematischen anorganischen Halbmikroanalysenganges wird beschrieben. Es beruht auf der Extraktion des Magnesiums mit chloroformischer 8-Hydroxy-chinolinlösung. Der Extraktrückstand wird verglüht und das Magnesium mit Titangelb nachgewiesen. Die Methode hat gegenüber anderen Möglichkeiten zur Abtrennung des Magnesiums in der qualitativen Analyse verschiedene Vorteile.

Résumé

On décrit un procédé de séparation du magnésium dans le groupe final (soluble) du schéma d'analyse minérale qualitative systématique à l'échelle semimicro, utilisant une technique d'extraction par solvant avec l'hydroxy-8 quinoléine dans le chloroforme. On recherche le magnésium dans le résidu de combustion de l'extrait en effectuant l'essai au jaune titane. La méthode présente plusieurs avantages sur les autres procédés de séparation du magnésium en analyse qualitative.

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References

  1. L. S. Bark andW. F. Jones, Mikrochim. Acta [Wien]1958, 406.

  2. Midlands Association for Qualitative Analysis “Semimicro Qualitative Inorganic Analysis, Advanced Scheme”, Birmingham, 1963. (Obtainable from Stanford & Mann Limited, 72–73 New Street, Birmingham, 2.)

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Dedicated to Prof.A. A. Benedetti-Pichler on the occasion of his 70th birthday.

Part XVIII. Mikrochim. Acta [Wien]1961, 88.

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Stephen, W.I., Weston, A.M. Studies in qualitative inorganic analysis. XIX. Mikrochim Acta 52, 179–184 (1964). https://doi.org/10.1007/BF01218034

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  • DOI: https://doi.org/10.1007/BF01218034

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