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Quenching of *UF6 (A state) by alkanes

✍ Scribed by Fred B. Wampler; Walter W. Rice; Richard C. Oldenborg

Publisher
John Wiley and Sons
Year
1979
Tongue
English
Weight
421 KB
Volume
11
Category
Article
ISSN
0538-8066

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✦ Synopsis

The removal of *UF6 (A state) molecules by selected alkanes has been investigated at 25OC. The following rate constants (units of 10" I/mol-sec) were evaluated ~S O -C ~F I ~, 0.0432 f 0.0115; n-C4Flo, 0.0764 f 0.020; CZF6, 0.0192 f 0.0052; CH4, 0.0612 f 0.0061; C&3,3.78 f 0.60; C~HS, 5.08 f 0.60; n-C4Hlo, 5.05 f 0.78; iso-C4H10,4.17 f 1.15; neo-CsHln, 6.59 f 0.93; CF&HJ, 0.0385 f 0.0056; CF2H-CF2H, 0.0729 f 0.0074; and CFzH-CFHz, 0.149 f 0.015. The perfluoro-alkane quenching of *UF6 proceeds via a physical mechanism. The other alkane quenching reactions are consistent with a chemical mechanism also contributing in varying degrees which may involve removal of two hydrogens from the alkane.

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