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Gravimetric determination of palladium with quinolinimide as a reagent

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Summary

Quinolinimide which is found to be a selective reagent for palladium forms a complex of the composition Pd(C7H3O2N2)2. The reagent quantitatively precipitates palladium from solutions of pH 0.5 to 2.5 in presence of common ions as well as platinium metals, except tin which, however, can be kept in solution by complexing with citric acid. The palladium complex being stable up to 307° C can be directly weighed.

Zusammenfassung

Chinolinimid wird als selektives Reagens für Palladium vorgeschlagen. Bei pH-Werten zwischen 0,5 und 2,5 kann Palladium quantitativ in Form des Komplexes Pd(C7H3O2N2)2 gefällt werden, wobei die meisten anderen Ionen, auch die der Platinmetalle, in Lösung bleiben. Zinn stört, kann aber mit Citronensäure maskiert werden. Der Palladiumkomplex ist bis 307° C stabil und kann direkt ausgewogen werden.

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References

  1. Majumdar, A. K., and S. P. Bag: Z. analyt. Chem. 164, 394 (1958).

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Authors and Affiliations

  1. Department of Inorganic and Analytical Chemistry, Jadavpur University, Calcutta-32, India

    A. K. Majumdar & S. P. Bag

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  1. A. K. Majumdar
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  2. S. P. Bag
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Majumdar, A.K., Bag, S.P. Gravimetric determination of palladium with quinolinimide as a reagent. Z. Anal. Chem. 186, 347–350 (1962). https://doi.org/10.1007/BF00488222

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  • DOI: https://doi.org/10.1007/BF00488222

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