Thermochromatography of chalcogenides and pnictides of Ag, Au, In, and Tl as presumed chemical analogs of elements 111 and 113


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The possibilities of chemical identification of superheavy elements with the atomic numbers Z = 111 and 113 are discussed. The chemical identification of superheavy elements is preceded, as a rule, by model experiments on chemical isolation of light analogs of these elements. Thermochromatographic methods were developed for selective chemical isolation of carrier-free Ag, Au, In, and Tl radioisotopes from nuclear reaction products in the form of volatile chalcogenides and pnictides. Their deposition temperatures and enthalpies of adsorption on the quartz surface were determined. The prospects for using these results in designing experiments for chemical identification of elements 111 and 113 are analyzed.

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V. Domanov

Joint Institute for Nuclear Research

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Email: domanov@jinr.ru
俄罗斯联邦, ul. Joliot-Curie 6, Dubna, Moscow oblast, 141980

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