Hydrogen polonide

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Hydrogen polonide
Identifiers
CAS number [31060-73-8]
Properties
Chemical formula H2Po
Molar mass 212.00 g mol−1
Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa)

Hydrogen polonide, H2Po, is the heaviest of the chalcogen hydrides. It has been prepared in trace quantities by the reduction of polonium with magnesium in dilute hydrochloric acid.[1] Its physical properties are unknown but, by comparison with other chalcogen hydrides, it is expected to be a volatile liquid at room temperature.[2][3] It is thought to be implicated in the bio-volatization of polonium, leading to a relative excess of polonium in the atmosphere compared with open ocean waters.[4]

References

  1. ↑ Paneth, Fritz; Johannsen, Adolf Über Poloniumwasserstoff. II. Mitteilung. Ber. Dtsch. Chem. Ges., 55 (8), 2622–37. DOI: 10.1002/cber.19220550836.
  2. ↑ Greenwood, Norman N.; Earnshaw, A. Chemistry of the Elements; Pergamon: Oxford, 1984; p 900. ISBN 0-08-022057-6.
  3. ↑ Bagnall, K. W. The Chemistry of Polonium. Adv. Inorg. Chem. Radiochem. 1962, 4, 197–229, <http://books.google.de/books?&lr=&id=8qePsa3V8GQC&oi=fnd&pg=PA197#v=onepage&q&f=false>.
  4. ↑ Hussain, N.; Ferdelman, T. G.; Church, T. M.; Luther III, George W. Bio-volatilization of polonium: Results from laboratory analyses. Aquat. Geochem. 1995, 1 (2), 175–88. DOI: 10.1007/BF00702890.

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