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Alkyl ketoximes as analytical reagents. XVI

Alkylketoxime als analytische Reagenzien. XVI

The chloroform extraction of silver(i) from nitrate solutions after reaction with 4-heptanone oxime

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Summary

The results of a study of the chloroform extraction of silver(I) from aqueous nitric acid and aqueous nitrate ion solutions, employing 4-heptanone oxime as a complexing agent are outlined.

The effects of nitric acid, sodium nitrate, 4-heptanone oxime, and silver (I) concentrations are described. Two models of the extraction process are used to explain the distribution ratios obtained at low and high nitric acid and nitrate ion concentrations.

Measurement of recovery factors indicate that greater than 99.9% of the silver(I) taken at the 5-mg level per 50 ml of aqueous phase can be extracted.

Zusammenfassung

Die Extraktion von Silber(I) aus wäßriger Salpetersäure- und Nitrationenlösung bei Gegenwart von 4-Heptanon als Komplexbildner mit Chloroform als Extraktionsmittel wurde untersucht. Der Einfluß der verschiedenen Lösungspartner wurde beschrieben. Zwei Modelle des Extraktionsvorganges wurden herangezogen, um die Verteilung bei geringer und bei hoher Konzentration von Salpetersäure und Nitrationen zu erklären. Die Bestimmung der Ausbeutefaktoren zeigt, daß 5 mg Silber zu mehr als 99,9% aus 50 ml wäßriger Phase extrahiert werden.

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References

  1. L. T. Dupuis and W. J. Holland, Mikrochim. Acta [Wien]1977, 483.

  2. L. T. Dupuis and W. J. Holland, Mikrochim. Acta [Wien]1978, 83.

  3. L. T. Dupuis and W. J. Holland, Mikrochim. Acta [Wien]1979, 285.

  4. W. J. Holland, R. A. DiMenna, and R. J. Walker, Mikrochim. Acta [Wien]1972, 183.

  5. P. J. Dunn and W. J. Holland, Mikrochim. Acta [Wien]1977, 149.

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Authors and Affiliations

  1. Department of Chemistry, University of Windsor, N9B 3P4, Windsor, Ontario, Canada

    L. T. Dupuis & W. J. Holland

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  1. L. T. Dupuis
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  2. W. J. Holland
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Dupuis, L.T., Holland, W.J. Alkyl ketoximes as analytical reagents. XVI. Mikrochim Acta 73, 29–40 (1980). https://doi.org/10.1007/BF01197229

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  • DOI: https://doi.org/10.1007/BF01197229

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