Solvent properties of supercritical Xe and SF/sub 6/

Journal Article · Thu May 21 04:00:00 EDT 1987 · J. Phys. Chem.; (United States)

DOI:https://doi.org/10.1021/j100295a083· OSTI ID:6510266

Smith, R D; Frye, S L; Yonker, C R; Gale, R W

The UV absorption solvatochromic shift for a probe solute (2-nitroanisole) has been used to explore the solvent properties of supercritical SF/sub 6/, Xe, and C/sub 2/H/sub 6/. The ..pi..* polarity/polarizability scale established by Kamlet, Taft, and co-workers has been used to compare solvent properties with liquids and previously studied supercritical fluids (CO/sub 2/ and NH/sub 3/). The ..pi..* measurements for Xe show that it is a less polar/polarizable solvent then CO/sub 2/ at similar reduced densities. SF/sub 6/ was found to have lower ..pi..* parameters than Xe, although it has a greater polarizability. A change in the dependence of ..pi..* upon density was observed at reduced densities of 0.70 +/- 0.15 for all fluids studied.

• Research Organization: Battelle Pacific Northwest Lab., Richland, WA
• DOE Contract Number: AC06-76RL01830
• OSTI ID: 6510266
• Journal Information: J. Phys. Chem.; (United States), Journal Name: J. Phys. Chem.; (United States) Vol. 91:11; ISSN JPCHA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400105 -- Separation Procedures
400201* -- Chemical & Physicochemical Properties
ABSORPTION SPECTROSCOPY
ALKANES
ANISOLE
DATA
ELECTRICAL PROPERTIES
ELEMENTS
ETHANE
ETHERS
EXPERIMENTAL DATA
FLUIDS
FLUORIDES
FLUORINE COMPOUNDS
GASES
HALIDES
HALOGEN COMPOUNDS
HYDROCARBONS
INFORMATION
NITRO COMPOUNDS
NONMETALS
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
ORGANIC OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
POLARIZABILITY
RARE GASES
SOLUTES
SOLVENT PROPERTIES
SPECTRA
SPECTROSCOPY
SULFUR COMPOUNDS
SULFUR FLUORIDES
SUPERCRITICAL STATE
ULTRAVIOLET SPECTRA
XENON