Summary
A new technique is described for the identification of the chloride ion through the formation of chromyl chloride, based on the extraction of the latter with carbon tetrachloride. The identification limit is 2μg of chloride. It is possible to carry out the test in the presence of many other anions, including fluoride, which cannot be present when the traditional distillation technique is employed.
Zusammenfassung
Vorgeschlagen wird eine neue Technik zum Chloridnachweis durch Bildung von Chromylchlorid. Dieser Nachweis beruht auf der Extraktion des Chromylchlorids mit Tetrachlorkohlenstoff. Die Nachweisgrenze liegt bei 2μg Chlorid, wobei die Möglichkeit besteht, den Test auch in Gegenwart von Fluorid durchzuführen, das bei Anwendung der üblichen Destillationsmethoden nicht anwesend sein darf.
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Conde, F.L., Perez, C.G. & Garcia, F.G. A new technique for the identification of chloride ions by the formation of chromyl chloride. Mikrochim Acta 65, 333–336 (1976). https://doi.org/10.1007/BF01217841
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DOI: https://doi.org/10.1007/BF01217841