Abstract
CHEMICAL EXAMINATION.—Native platinum was long ago the subject of investigation and the search for elements not yet discovered. Kern, in the year 1877 (Chem. News, 36, 1877, and 37, 1878), A. Guyar (Chem. News, 40, 59, 1879), Kurtz (Trans. Amer. Inst. Min. Eng., 33, 347, 1903), A. French (Chem. News, 104, 283, 1911) and many others claimed to have found new elements in native platinum. These ‘discoveries’ however, have not been confirmed. In 1925 W. Noddak, I. Tacke and O. Berg (Die Naturwissenschaften, No. 26, pp. 167–174, 1925) published a paper stating that they found in native platinum from the Gorablogodatski region, Ural, an element of atomic number 7.5. The quantity of the discovered substance was, however, so small (about 1 mgm.) that it was not possible to carry out conclusive experiments.
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ZVJAGINSTSEV, O. Dwi-Manganese in Native Platinum. Nature 118, 262–263 (1926). https://doi.org/10.1038/118262b0
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DOI: https://doi.org/10.1038/118262b0
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