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Adsorption of the halogens on cerium dioxide

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Summary

CeO2, alone or mixed with La2O3, is used as halogen adsorbent in the determination of carbon and hydrogen. Quantitative data are given on the adsorption of the single halogens on various samples of pure CeO2 and La2O3. Retention of CO2 and the influence of several parameters of special interest in the carbon and hydrogen determination, have been examined. It has been found that the conditions for optimum adsorption of the halogens are a large surface and relatively low adsorption temperature. Unfortunately these conditions cannot be applied in the determination of carbon and hydrogen.

Zusammenfassung

CeO2 allein oder im Gemisch mit La2O3 wurde als Adsorbens für Halogen bei der CH-Bestimmung verwendet. Quantitative Angaben über die Adsorption der einzelnen Halogene an verschiedenen Mustern von reinem CeO2 und La2O3 wurden gebracht. Die Retention von CO2 und der Einfluß einzelner Parameter, die für die CH-Bestimmung von besonderem Interesse sind, wurden geprüft. Die besten Bedingungen für die Adsorption der Halogene sind große Oberfläche und relativ niedere Temperatur. Beide Bedingungen können leider bei der CH-Bestimmung nicht eingehalten werden.

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Authors and Affiliations

  1. Department of Chemistry, Twente University of Technology, P. O. Box 217, Enschede, The Netherlands

    W. Potman, J. G. van Ommen & E. A. M. F. Dahmen

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  1. W. Potman
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  2. J. G. van Ommen
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  3. E. A. M. F. Dahmen
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Potman, W., van Ommen, J.G. & Dahmen, E.A.M.F. Adsorption of the halogens on cerium dioxide. Mikrochim Acta 63, 633–644 (1975). https://doi.org/10.1007/BF01217324

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  • DOI: https://doi.org/10.1007/BF01217324

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