Abstract
IN connexion with special developments in the field of thermo-electricity it is particularly desirable to obtain a supply of very pure bismuth, which above all should be free from lead, copper, silver and other metals. A chemical method of purification that has been developed, consisting of a number of stages, has proved that the reduction of the bismuth oxychloride is the most important step. In order to discover the reason for this somewhat unexpected purifying effect, the behaviour of bismuth oxychloride at elevated temperature was investigated in the presence of a current of hydrogen and a current of nitrogen.
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ANTONSEN, O., PLUST, H. Behaviour of Bismuth Oxychloride at High Temperature. Nature 198, 582–583 (1963). https://doi.org/10.1038/198582a0
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DOI: https://doi.org/10.1038/198582a0
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