Turbidity Data of Weightless SF6 Near its Liquid–Gas Critical Point

Light transmission measurements performed in SF 6 close to its liquid–gas critical point are used to obtain turbidity data in the reduced temperature range ( T is temperature, T c is the critical temperature). Automatic experiments (ALICE 2 facility) were made at a near critical density, i.e., , in...

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Bibliographic Details
Published in:International journal of thermophysics 2009-06, Vol.30 (3), p.810-832
Main Authors: Lecoutre, C., Garrabos, Y., Georgin, E., Palencia, F., Beysens, D.
Format: Article
Language:English
Subjects:
Chemical Sciences
Classical Mechanics
Condensed Matter
Condensed Matter Physics
Industrial Chemistry/Chemical Engineering
Material chemistry
Physical Chemistry
Physics
Physics and Astronomy
Statistical Mechanics
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Summary:Light transmission measurements performed in SF 6 close to its liquid–gas critical point are used to obtain turbidity data in the reduced temperature range ( T is temperature, T c is the critical temperature). Automatic experiments (ALICE 2 facility) were made at a near critical density, i.e., , in the one-phase homogeneous region, under the microgravity environment of the Mir Space Station ( is the average density, ρ c is the critical density). The turbidity data analysis verifies the theoretical crossover formulations for the isothermal compressibility and the correlation length ξ . These latter formulations are also used to analyze very near T c thermal diffusivity data obtained under microgravity conditions by Wilkinson et al. (Phys. Rev. E 57 436, 1998).
ISSN:0195-928X
1572-9567
DOI:10.1007/s10765-009-0582-6