Diffusion of thallous chloride in single crystals of KCl by a novel spectrophotometric method

Renata Reisfeld*, Abraham Glasner, Alexander Honigbaum

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

3 Scopus citations

Abstract

A novel attachment to the Beckman DU spectrophotometer is described, by means of which the diffusion profile of some heavy-metal ions in alkali halides may be recorded. The diffusion of Tl+ ions in KCl in the temperature range 270°-400°C was measured. It is concluded that the activation energy for the diffusion of Tl+ varies with temperature, parallel to that of the self-diffusion of K+ ions, calculated from conductivity measurements. The diffusion constants of the Tl+, at any temperature, are several orders higher, as the associated vacancies of the divalent impurities present are also involved in the diffusion process.

Original languageEnglish
Pages (from-to)1892-1895
Number of pages4
JournalThe Journal of Chemical Physics
Volume42
Issue number6
DOIs
StatePublished - 1965

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