Vapor phase composition as an indicator of thermal stability of the Sm, Eu, and Yb chlorides

Sergeev, D.N.; Motalov, V.B.; Butman, M.F.; Kudin, L.S.; Krämer, Karl (2015). Vapor phase composition as an indicator of thermal stability of the Sm, Eu, and Yb chlorides. Thermochimica Acta, 622, pp. 51-54. Elsevier 10.1016/j.tca.2015.06.034

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The Sm, Eu, and Yb tri- and dichlorides were investigated by Knudsen effusion mass spectrometry. It was found out by the analysis of mass spectra and ionization efficiency curves that the vapor composition is complex due to the partial high temperature decomposition/disproportionation of the samples. Up to five vapor species were identified for both LnCl3 (LnCl3, LnCl2, Ln2Cl4, Ln2Cl5, and Ln2Cl6) and LnCl2 (LnCl3, LnCl2, LnCl, Ln, and Ln2Cl4). The quantitative evaluation of vapor composition was made. It indicates that the disproportionation of SmCl2 and EuCl2 is negligible in the temperature range studied whereas that of YbCl2 and the decomposition of SmCl3 and YbCl3 cannot be neglected.

Item Type:

Journal Article (Original Article)

Division/Institute:

08 Faculty of Science > Departement of Chemistry and Biochemistry

UniBE Contributor:

Krämer, Karl

Subjects:

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

ISSN:

0040-6031

Publisher:

Elsevier

Language:

English

Submitter:

Karl Krämer

Date Deposited:

22 Jan 2016 13:31

Last Modified:

22 Jan 2016 13:31

Publisher DOI:

10.1016/j.tca.2015.06.034

BORIS DOI:

10.7892/boris.74685

URI:

https://boris.unibe.ch/id/eprint/74685

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