Abstract
THE account which was given in NATURE of February 10 (p. 195) of the very refractory substance which I obtained from a black titaniferous iron sand from New Zealand and believed to be the oxide of the newly discovered element, hafnium, requires now to be brought up-to-date. In that account it was mentioned that I had sent to Copenhagen practically all my purified material for X-ray examination and comparison with the preparations and specimens of the discoverers. Three specimens were sent: (a) the sand itself, (b) the cream-coloured substance labelled in 1918 “New Oxide”, (c) the cinnamon-coloured oxide which resulted from the atomic weight determinations (Chem. Soc. Jour. for February, p. 312). The total amount of (b) and (c) was between 0.3 and 0.4 gram each and was all I had. The result of the first examination by Drs. Coster and Hevesy was to the effect that they were unable by X-ray spectral analysis to detect hafnium in any of the three specimens, and this I announced at the meeting of the Chemical Society on February 15.
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SCOTT, A. Hafnium and New Zealand Sand. Nature 111, 598 (1923). https://doi.org/10.1038/111598a0
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DOI: https://doi.org/10.1038/111598a0
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