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Activating Molecules, Ions, and Solid Particles with Acoustic Cavitation
Published on: April 11, 2014
Kinetic investigation of the hydrolysis of uranium hexafluoride gas
Jason M Richards1, Leigh R Martin1, Glenn A Fugate1
1Isotope and Fuel Cycle Technology Division, Oak Ridge National Laboratory One Bethel Valley Road Oak Ridge TN 37831 USA richardsjm@ornl.gov fugatega@ornl.gov.
Abstract:
UF6 is commonly employed in enrichment technologies and is known to react rapidly with water vapor to form radioactive particulates and hydrofluoric acid vapor. The kinetics of the UF6 hydrolysis reaction have been observed directly for the first time. The rate appears to be half order and second order for UF6 and water, respectively, with a rate constant of 1.19 ± 0.22 Torr-3/2 s-1. The proposed mechanism involves formation of the [UF6·2H2O] adduct via two separate reactions.
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