Thermodynamic Properties of Aqueous Magnesium Chloride Solutions From 250 to 600 K and to 100 MPa

Journal Article · Tue Sep 01 00:00:00 EDT 1998 · Journal of Physical and Chemical Reference Data

DOI:https://doi.org/10.1063/1.556026· OSTI ID:663165

Wang, P; Pitzer, K S ^[1]; Simonson, J M ^[2]

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1. Department of Chemistry and Lawrence Berkeley National Laboratory, University of California, Berkeley, California 94720 (United States)
2. Oak Ridge National Laboratory, P.O. Box 2008, MS6110, Oak Ridge, Tennessee 37831 (United States)

A new general model that describes the thermodynamic properties of MgCl{sub 2}(aq) has been developed from a global fit to experimental results, including isopiestic molalities, vapor pressure measurements, freezing-point depressions, enthalpies of dilution, heat capacities, and densities, for this system. The model is based on a recent ion-interaction treatment with extended higher-order virial terms, and on experimental results from 240 to 627 K at pressures to 100 MPa and molalities to 25thinspmol{center_dot}kg{sup {minus}1}. {copyright} {ital 1998 American Institute of Physics and American Chemical Society.}

• Research Organization: Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC05-96OR22464
• OSTI ID: 663165
• Journal Information: Journal of Physical and Chemical Reference Data, Vol. 27, Issue 5; Other Information: PBD: Sep 1998
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
36 MATERIALS SCIENCE
MAGNESIUM COMPOUNDS
SOLUTION HEAT
EQUATIONS OF STATE
MAGNESIUM CHLORIDES
AQUEOUS SOLUTIONS
TEMPERATURE RANGE 0273-0400 K
TEMPERATURE RANGE 0400-1000 K
VERY HIGH PRESSURE
ENTHALPY
SPECIFIC HEAT
DENSITY
FREEZING
OSMOSIS
VAPOR PRESSURE
THERMODYNAMIC PROPERTIES
REACTION KINETICS
THERMODYNAMIC ACTIVITY
THERMODYNAMICS
APPARENT MOLAR PROPERTIES
OSMOTIC COEFFICIENT
PITZER EQUATION