ISSN print edition: 0366-6352 ISSN electronic edition: 1336-9075 Registr. No.: MK SR 9/7 Published monthly

New inorganic and organometallic forms of astatine

Y. V. Norseev and V. A. Khalkin

United Institute of Nuclear Research, Dubna

Abstract: Properties of At in M HNO₃ and 5 × 10^-3M H₂Cr₂O₇ were studied. Astatine is pos. charged under the exptl. conditions, in the electromigrating processes; the At cation has a +1 charge on cation exchangers. During electrolysis, At spontaneously deposits on the neg. charged surface of Pt satd. with O. During copptn. with salts of univalent cations, (tungstophosphates, dichromates, and iodates), which have limited soly., there is practically a complete sorption of At on these ppt., indicating that At is present as a univalent cation. On the basis of these expts., the existence of the univalent At cation was postulated. The compn. of the chloro complex ion of At was detd. and the stability const. calcd. Some phenyl- and tolylmetallic derivs. were prepd. and identified.

Full paper in Portable Document Format: 218a602.pdf (in Russian)

Chemical Papers 21 (8) 602–610 (1967)