Thermodynamics of multicomponent, miscible, ionic systems: the system LiNO/sub 3/-KNO/sub 3/-H/sub 2/O
Vapor pressures of water over KNO/sub 3/-H/sub 2/O and LiNO/sub 3/-KNO/sub 3/-H/sub 2/O (50.34 cation % Li) are reported in the temperature range 373 less than or equal to T/K less than or equal to 436. Water activities calculated from these vapor pressures and other available results are fitted to an equation appropriate for multicomponent electrolyte solutions which are miscible to fused salts. The resulting equation gives the excess Gibbs energy over the complete composition range of the three-component system. Parameters for the binary fused salt mixture are determined from aqueous solution data and compared with approximate values calculated from phase diagrams. Excess thermodynamic properties, including solute activity coefficients and excess enthalpies, are calculated from the model.
- Research Organization:
- Oak Ridge National Lab., TN
- DOE Contract Number:
- AC03-76SF00098; AC05-84OR21400
- OSTI ID:
- 5459359
- Journal Information:
- J. Phys. Chem.; (United States), Journal Name: J. Phys. Chem.; (United States) Vol. 90:13; ISSN JPCHA
- Country of Publication:
- United States
- Language:
- English
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400201* -- Chemical & Physicochemical Properties
ALKALI METAL COMPOUNDS
BINARY MIXTURES
DATA
DISPERSIONS
ELECTROLYTES
HIGH TEMPERATURE
HYDROGEN COMPOUNDS
INFORMATION
LITHIUM COMPOUNDS
LITHIUM NITRATES
MEDIUM TEMPERATURE
MIXTURES
MOLTEN SALTS
NITRATES
NITROGEN COMPOUNDS
NUMERICAL DATA
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
POTASSIUM COMPOUNDS
POTASSIUM NITRATES
SALTS
THEORETICAL DATA
THERMODYNAMIC PROPERTIES
VAPOR PRESSURE
WATER