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Spectrophotometric determination of copper with piperidinium piperidyl dithioformate

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Summary

The reagent piperidinium piperidyl dithioformate forms with copper in aqueous solution a yellowish brown complex which can be extracted with carbon tetrachloride. The copper-PPDF complex in carbon tetrachloride solution has maximum absorption at 434 nm. A spectrophotometric method for determining copper has been developed as the reagent has been shown to form a definite complex.

Zusammenfassung

Piperidinium-Piperidyl-Dithioformiat (PPDF) bildet mit Kupfer in wäßriger Lösung einen gelbbraunen Komplex, der mit Tetrachlorkohlenstoff extrahierbar ist. Dieser Extrakt zeigt maximale Absorption bei 434 nm. Eine spektrophotometrische Methode zur Kupferbestimmung ließ sich auf Grundlage dieses Verhaltens entwickeln, da das Reagens eine definierte Komplexverbindung bildet.

Résumé

Le réactif pipéridyldithioformiate de pipéridinium forme avec le cuivre en solution aqueuse un complexe brun jaunâtre que l'on peut extraire par le tétrachlorure de carbone. Le complexe cuivre-PDFP en solution dans le tétrachlorure de carbone présente un maximum d'absorption à 434 nm. On a développé une méthode spectrophométrique pour le dosage du cuivre après avoir montré que le réactif formait un complexe défini.

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Authors and Affiliations

  1. Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore, India

    C. G. Ramachandran Nair, V. R. Satyanarayana Rao & A. R. Vasudeva Murthy

Authors
  1. C. G. Ramachandran Nair
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  2. V. R. Satyanarayana Rao
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  3. A. R. Vasudeva Murthy
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Nair, C.G.R., Rao, V.R.S. & Murthy, A.R.V. Spectrophotometric determination of copper with piperidinium piperidyl dithioformate. Mikrochim Acta 49, 741–748 (1961). https://doi.org/10.1007/BF01217362

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  • DOI: https://doi.org/10.1007/BF01217362

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