Isotope effects in aqueous systems. 13. The hydrophobic interaction. Some thermodynamic properties of benzene/water and toluene/water solutions and their isotope effects

Journal Article · Thu Apr 29 00:00:00 EDT 1982 · J. Phys. Chem.; (United States)

DOI:https://doi.org/10.1021/j100206a046· OSTI ID:6462125

Dutta-Choudhury, M K; Miljevic, N; Van Hook, W A

Henry's law constants, K/sub H/ = K/sup 0/ + K/sub 1/X, have been measured as a function of concentration for the water-rich and benzene-rich solutions C/sub 6/H/sub 6//H/sub 2/O and C/sub 6/H/sub 6//D/sub 2/O and for the water-rich solutions C/sub 6/D/sub 6//H/sub 2/O and C/sub 6/D/sub 6//D/sub 2/O at several temperatures The constants K/sup 0/ and K/sub 1/ are sensitive to temperature and to isotopic label. The vapor pressure results have been supplemented with measurements of the apparent molar volumes of the solutions listed above, as well as for H/sub 2/O/sup -/ and D/sub 2/O-rich solutions of toluene and deuteriotoluene, and with determinations of the solubilities and solubility isotope effects of the toluene solutions. The data have been interpreted in the context of the theory of isotope effects in condensed-phase systems. That analysis indicates that a significant dynamical vibrational coupling between solute and solvent normal modes occurs in these solutions. The result is of interest particularly as it pertains to models of the hydrophobic interaction.

• Research Organization: Univ. of Tennessee, Knoxville
• OSTI ID: 6462125
• Journal Information: J. Phys. Chem.; (United States), Vol. 86:9
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
BENZENE
SOLUBILITY
THERMODYNAMIC PROPERTIES
DEUTERIUM
ISOTOPE EFFECTS
DEUTERIUM COMPOUNDS
TOLUENE
AQUEOUS SOLUTIONS
EXPERIMENTAL DATA
HEAVY WATER
MEDIUM TEMPERATURE
VAPOR PRESSURE
WATER
AROMATICS
DATA
DISPERSIONS
HYDROCARBONS
HYDROGEN COMPOUNDS
HYDROGEN ISOTOPES
INFORMATION
ISOTOPES
LIGHT NUCLEI
MIXTURES
NUCLEI
NUMERICAL DATA
ODD-ODD NUCLEI
ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
SOLUTIONS
STABLE ISOTOPES
400302* - Organic Chemistry- Isotope Effects- (-1987)