Abstract
PART 6 of the volume on potassium in “Gmelin's Handbuch” terminates the account of its compounds and deals chiefly with such compounds as contain also either lithium or sodium. Whereas the chlorides of lithium and potassium give merely a eutectic mixture, the system between the two sulphates is complicated by the fact that each of the two latter is dimorphous. A liquid alloy of sodium and potassium was known to Sir Humphry Davy. The compound NaK has not been isolated, but its existence is inferred from its band spectrum. It is chemically more active than either of the two metals.
Gmelin's Handbuch der anorganischen Chemie
Achte vollig neu bearbeitete Auflage. Herausgegeben von der Deutschen Chemischen Gesellschaft. System-Nummer 22: Kalium, Lief. 6, Schluss der Verbindung. Pp. 1075–1230. 21–75 gold marks. Lief. 7: Techniche Darstelling der Kalisalze. Pp. 1231–1338. 16.50 gold marks. (Berlin: Verlag Chemie, G.m.b.H., 1938–39.)
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Gmelin's Handbuch der anorganischen Chemie. Nature 146, 318 (1940). https://doi.org/10.1038/146318a0
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DOI: https://doi.org/10.1038/146318a0