Die Aktivitätskoeffizienten des Hg im Indiumamalgam beim Übergang von der festen zur flüssigen Phase / The activity coefficients of hg in in-amalgams at the solid-liquid phase transition
Open Access
- 1 January 1971
- journal article
- Published by Walter de Gruyter GmbH in Zeitschrift für Naturforschung A
- Vol. 26 (1) , 150-153
- https://doi.org/10.1515/zna-1971-0127
Abstract
By 2537 Å resonance absorption the temperature dependency of mercury partial pressure of different In-amalgams is measured. - The Hg-concentrations of the investigated amalgams are 1.9 - 20 atomic per cent. The temperature interval is 30 -160 °C. In the solid + liquid two-phase region the activity coefficient of mercury is strongly diminuted with growing temperature. For temperatures higher than 130 °C the Hg-vapour pressure in the two-phase region falls with growing temperature. With the help of a generalized Clausius-Clapeyron formula for a three phase system with two components the mercury vapour pressure in the liquid + solid two-phase region is calculated. There is a good agreement with our experimental resultsKeywords
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