Quenching of *UF/sub 6/ (A state) by alkanes

Journal Article · Thu Mar 01 04:00:00 EST 1979 · Int. J. Chem. Kinet.; (United States)

DOI:https://doi.org/10.1002/kin.550110305· OSTI ID:6502501

Wampler, F B; Rice, W W; Oldenborg, R C

The removal of *UF/sub 6/ (A state) molecules by selected alkanes has been investigated at 25/sup 0/C. The following rate constants (units of 10/sup 11/ l/mol . sec) were evaluated: iso-C/sub 4/F/sub 10/, 0.0432 +- 0.0115; n-C/sub 4/F/sub 10/, 0.0764 +- 0.020; C/sub 2/F/sub 6/, 0.0192 +- 0.0052; CH/sub 4/, 0.0612 +- 0.0061; C/sub 2/H/sub 6/, 3.78 +- 0.60; C/sub 3/H/sub 8/, 5.08 +- 0.60; n-C/sub 4/H/sub 10/, 5.05 +- 0.78; iso-C/sub 4/H/sub 10/, 4.17 +- 1.15; neo-C/sub 5/H/sub 12/, 6.59 +- 0.93; CF/sub 3/-CH/sub 3/, 0.0385 +- 0.0056; CF/sub 2/H-CF/sub 2/H, 0.0729 +- 0.0074; and CF/sub 2/H-CFH/sub 2/, 0.149 +- 0.015. The perfluoro-alkane quenching of *UF/sub 6/ 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. 3 figures, 1 table.

• Research Organization: Univ. of California, Los Alamos, NM
• OSTI ID: 6502501
• Journal Information: Int. J. Chem. Kinet.; (United States), Journal Name: Int. J. Chem. Kinet.; (United States) Vol. 11:3; ISSN IJCKB
• Country of Publication: United States
• Language: English

Related Subjects

38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY
400702* -- Radiochemistry & Nuclear Chemistry-- Properties of Radioactive Materials
ACTINIDE COMPOUNDS
ALKANES
ELEMENTS
ENERGY LEVELS
EXCITED STATES
FLUORIDES
FLUORINE COMPOUNDS
HALIDES
HALOGEN COMPOUNDS
HYDROCARBONS
HYDROGEN
KINETICS
MEDIUM TEMPERATURE
NONMETALS
ORGANIC COMPOUNDS
QUENCHING
REACTION KINETICS
URANIUM COMPOUNDS
URANIUM FLUORIDES
URANIUM HEXAFLUORIDE