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The evaporation and high-temperature reactions of elements and their compounds in a d. c. carbon arc for spectrochemical analysis

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Summary

A study has been made of the high-temperature reactions taking place in the graphite matrix of a d. c. carbon arc. A special evaporator was used for controlled heating of samples. Volatilisations were investigated spectrographically, and X-ray diffraction was used for detection of any new phases formed. The presence of sodium fluoride or chloride was found to enhance the volatilisation of the elements investigated, but no evidence was found for formation of their fluorides or chlorides.

Zusammenfassung

Die in der Graphitmatrix eines Gleichstrombogens bei hohen Temperaturen stattfindenden Reaktionen wurden untersucht. Ein spezieller Verdampfer wurde für das kontrollierte Erhitzen der Proben verwendet. Verflüchtigungen wurden spektrographisch festgestellt, zum Nachweis etwa neu entstandener Phasen diente die Röntgendiffraktion. Die Anwesenheit von NaF oder NaCl begünstigt die Verflüchtigung der untersuchten Elemente, ohne daß Anzeichen für die Bildung ihrer Fluoride oder Chloride gefunden werden konnten.

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Authors and Affiliations

  1. Institute for Nuclear Raw Materials Technology, Beograd, Yugoslavia

    Srbobran R. Rajić, Velislava Vrga & Aleksandar R. Pavlovic

Authors
  1. Srbobran R. Rajić
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  2. Velislava Vrga
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  3. Aleksandar R. Pavlovic
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Rajić, S.R., Vrga, V. & Pavlovic, A.R. The evaporation and high-temperature reactions of elements and their compounds in a d. c. carbon arc for spectrochemical analysis. Mikrochim Acta 65, 93–106 (1976). https://doi.org/10.1007/BF01218253

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  • DOI: https://doi.org/10.1007/BF01218253

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