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Isothermal compressibility of C/sub 6/H/sub 6/, C/sub 6/D/sub 6/, c-C/sub 6/H/sub 12/, c-C/sub 6/D/sub 12/, and their mixtures from 0. 1 to 35 MPa at 288, 298, and 313 K

Journal Article · · J. Phys. Chem.; (United States)
DOI:https://doi.org/10.1021/j150649a037· OSTI ID:6696201
;
The densities of the title compounds and of their solutions (0, 25, 50, 75, and 100 nominal mol%) have been measured between 0.1 and 35 MPa at 15, 25, and 40 /sup 0/C. The data are reported in terms of the parameters of fit to the Tait equation, and as volumes, compressibilities, kappa, and reduced compressibilities, kappa/sub R/ (kappa/sub R//sup -1/ = V/(kRT)), and as excess volumes, excess compressibilities, and excess reduced compressibilities for the solutions. The melting points of C/sub 6/H/sub 12/ and C/sub 6/D/sub 12/ are reported from 0.1 to 25 MPa. Isotope effects on the volumetric properties of benzene and cyclohexane are small, and excess compressibilities for solutions of istopic isomers, one in the other, are zero within the experimental precision. The data are interpreted in terms of the statistical theory of condensed-phase isotope effects and by using a model which partitions the compressibilities into hard-sphere (HS), librational, internal, and intermolecular attractive parts. Using the model, the compressibilities, the isotope effects on compressibility, and the excess compressibility of the solutions were calculated all in a self-consistent fashion and in agreement with experiment.
Research Organization:
Univ. of Tennessee, Knoxville
OSTI ID:
6696201
Journal Information:
J. Phys. Chem.; (United States), Journal Name: J. Phys. Chem.; (United States) Vol. 88:5; ISSN JPCHA
Country of Publication:
United States
Language:
English

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Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400302* -- Organic Chemistry-- Isotope Effects-- (-1987)
ALKANES
AROMATICS
BENZENE
COMPRESSIBILITY
CYCLOALKANES
CYCLOHEXANE
DATA
DENSITY
DEUTERIUM
DEUTERIUM COMPOUNDS
EXPERIMENTAL DATA
HYDROCARBONS
HYDROGEN COMPOUNDS
HYDROGEN ISOTOPES
INFORMATION
ISOTOPE EFFECTS
ISOTOPES
LIGHT NUCLEI
MECHANICAL PROPERTIES
NUCLEI
NUMERICAL DATA
ODD-ODD NUCLEI
ORGANIC COMPOUNDS
PHYSICAL PROPERTIES
PRESSURE EFFECTS
STABLE ISOTOPES
TEMPERATURE EFFECTS