Thermochromatography of Heavy Actinides - Determination of the Sublimation Enthalpy of Es

Taut, Steffen; Hübener, S.; Eichler, B.; Gäggeler, H. W.; Schädel, Μ.; Zvara, I. (1997). Thermochromatography of Heavy Actinides - Determination of the Sublimation Enthalpy of Es. Radiochimica acta, 78(S1), pp. 33-38. Oldenbourg 10.1524/ract.1997.78.special-issue.33

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The adsorption of Cf, Es, and Fm on several metals was studied thermochromatographically. In all systems investigated Es is adsorbed between the Cf and Fm, due to the increasing metallic divalency in the second half of the actinide series. Based on the adsorption data and the experimentally proved correlation between adsorption and sublimation heats we calculated the Es sublimation enthalpy of 167 kj/mol. This is significantly higher than the value obtained by direct vapour pressure measurements (133 kJ/mol [1]). However, this value fits better to theory.

Item Type:

Journal Article (Original Article)

Division/Institute:

08 Faculty of Science > Departement of Chemistry and Biochemistry

UniBE Contributor:

Gäggeler, Heinz

Subjects:

500 Science > 570 Life sciences; biology
500 Science > 540 Chemistry

ISSN:

0033-8230

Publisher:

Oldenbourg

Language:

English

Submitter:

Marceline Brodmann

Date Deposited:

23 Sep 2020 14:47

Last Modified:

23 Sep 2020 14:47

Publisher DOI:

10.1524/ract.1997.78.special-issue.33

BORIS DOI:

10.7892/boris.115703

URI:

https://boris.unibe.ch/id/eprint/115703

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