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Effects of composition on the equilibrium between hydrogen isotopes and palladium

✍ Scribed by V. Trentin; Ph. Brossard; D. Schweich

Publisher: Elsevier Science
Year: 1993
Tongue: English
Weight: 558 KB
Volume: 48
Category: Article
ISSN: 0009-2509
DOI: 10.1016/0009-2509(93)80326-l

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✦ Synopsis

Abatrsct

-The isotopic separation coefficient mHD and the equilibrium (or plateau) pressure p* of hydrogen and deuterium in equilibrium with palladium were measured at 298 K. The dependence of aHO and pw on the composition of the gas phase was determined from absorption and desorption batch experiments. A simple thermodynamic model altows one to predict aan and pg on the basis of (1) the isotopic exchange equilibrium constants, (2) the plateau pressures of the pure isotopes, and (3) the composition. The reliability of the thermodynamic model for predicting the chromatographic separation of a binary mixture is discussed briefly.

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