Ultrasonic measurements of the vibrational relaxation of UF/sub 6/: Mixtures with H/sub 2/, CH/sub 4/, and C/sub 2/H/sub 6/

Journal Article · Mon Oct 01 04:00:00 EDT 1984 · J. Chem. Phys.; (United States)

OSTI ID:6398803

Bass, H E; Rogers, R

Ultrasonic absorption has been measured in mixtures of 10% and 5% UF/sub 6/ in H/sub 2/, CH/sub 4/, and C/sub 2/H/sub 6/ at 273 and 350 K for f/P ratios from 15 kHz/atm to 2 MHz/atm. The measured absorption was corrected for tube, classical losses, absorption due to rotational relaxation and, for mixtures with CH/sub 4/ and C/sub 2/H/sub 6/, vibrational relaxation of the diluent gas. The resulting absorption was analyzed to determine the vibrational relaxation time of UF/sub 6/ in collisions with the diluent (H/sub 2/, CH/sub 4/, or C/sub 2/H/sub 6/). The relaxation times were found to be greater than 4 x 10/sup -8/ s atm for H/sub 2/ at 273 K; 1.2 x 10/sup -7/ and 1.3 x 10/sup -7/ s atm for CH/sub 4/ at 273 and 350 K, respectively; and 4.9 x 10/sup -9/ and 1.2 x 10/sup -8/ s atm for C/sub 2/H/sub 6/ at 273 and 350 K, respectively.

• Research Organization: Physical Acoustics Research Group, Department of Physics and Astronomy, The University of Mississippi, University, Mississippi 38677
• OSTI ID: 6398803
• Journal Information: J. Chem. Phys.; (United States), Journal Name: J. Chem. Phys.; (United States) Vol. 81:7; ISSN JCPSA
• Country of Publication: United States
• Language: English

Related Subjects

640302* -- Atomic
Molecular & Chemical Physics-- Atomic & Molecular Properties & Theory
74 ATOMIC AND MOLECULAR PHYSICS
ABSORPTION
ACTINIDE COMPOUNDS
ALKANES
DISPERSIONS
ELEMENTS
ENERGY LEVELS
ETHANE
EXCITED STATES
FLUORIDES
FLUORINE COMPOUNDS
HALIDES
HALOGEN COMPOUNDS
HYDROCARBONS
HYDROGEN
METHANE
MIXTURES
NONMETALS
ORGANIC COMPOUNDS
RELAXATION
RELAXATION TIME
SOUND WAVES
ULTRASONIC WAVES
URANIUM COMPOUNDS
URANIUM FLUORIDES
URANIUM HEXAFLUORIDE
VIBRATIONAL STATES
WAVE PROPAGATION