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Title: Kinetic investigation of the hydrolysis of uranium hexafluoride gas

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 UF6hydrolysis 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-3/2s-1. The proposed mechanism involves formation of the [UF6∙2H2O] adduct via two separate reactions.

Authors:
ORCiD logo [1]; ORCiD logo [1]; ORCiD logo [1]; ORCiD logo [2]
  1. Isotope and Fuel Cycle Technology Division, Oak Ridge National Laboratory, Oak Ridge, USA
  2. Environmental Sciences Division, Oak Ridge National Laboratory, Oak Ridge, USA
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA), Office of Defense Nuclear Nonproliferation
OSTI Identifier:
1664468
Alternate Identifier(s):
OSTI ID: 1665999
Grant/Contract Number:  
AC05-00OR22725
Resource Type:
Published Article
Journal Name:
RSC Advances
Additional Journal Information:
Journal Name: RSC Advances Journal Volume: 10 Journal Issue: 57; Journal ID: ISSN 2046-2069
Publisher:
Royal Society of Chemistry
Country of Publication:
United Kingdom
Language:
English

Citation Formats

Richards, Jason M., Martin, Leigh R., Fugate, Glenn A., and Cheng, Meng-Dawn. Kinetic investigation of the hydrolysis of uranium hexafluoride gas. United Kingdom: N. p., 2020. Web. doi:10.1039/D0RA05520D.
Richards, Jason M., Martin, Leigh R., Fugate, Glenn A., & Cheng, Meng-Dawn. Kinetic investigation of the hydrolysis of uranium hexafluoride gas. United Kingdom. doi:10.1039/D0RA05520D.
Richards, Jason M., Martin, Leigh R., Fugate, Glenn A., and Cheng, Meng-Dawn. Fri . "Kinetic investigation of the hydrolysis of uranium hexafluoride gas". United Kingdom. doi:10.1039/D0RA05520D.
@article{osti_1664468,
title = {Kinetic investigation of the hydrolysis of uranium hexafluoride gas},
author = {Richards, Jason M. and Martin, Leigh R. and Fugate, Glenn A. and Cheng, Meng-Dawn},
abstractNote = {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 UF6hydrolysis 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-3/2s-1. The proposed mechanism involves formation of the [UF6∙2H2O] adduct via two separate reactions.},
doi = {10.1039/D0RA05520D},
journal = {RSC Advances},
number = 57,
volume = 10,
place = {United Kingdom},
year = {2020},
month = {9}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
DOI: 10.1039/D0RA05520D

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Works referenced in this record:

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