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Contribution a l'etude des echanges isotopiques du tritium dans le phenol a haute temperature
Author(s) -
Bettens B.,
Dubois E.
Publication year - 1972
Publication title -
journal of labelled compounds
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.432
H-Index - 47
eISSN - 1099-1344
pISSN - 0022-2135
DOI - 10.1002/jlcr.2590080304
Subject(s) - tritium , activation energy , chemistry , catalysis , phenol , hydrogen , physics , nuclear physics , organic chemistry
The experimental determination of the exchange rate, first between the tritium fixed on the OH function and the hydrogen of the nucleus, and then between the tritium specifically fixed on the cycle and the OH function has been studied. The experimental results are obtained by two different ways, the lyophilisation and the transformation in the corresponding phenolate. By means of the experimental values we have calculated the activation energy of the exchange. With these values, it is possible to show that : a) due to its stability, the molecule can be use as tracer at high temperature in gazeous phase. b) the compounds with labile hydrogene have a certain catalytic effect on the isotopic exchange.