Geothermal-brine modeling - prediction of mineral solubilities in natural waters: the Na-K-Mg-Ca-H-Cl-SO{sub 4}-OH-HCO{sub 3} CO{sub 3}-CO{sub 2}-H{sub 2}O system to high ionic strengths at 25{sup 0}C

Technical Report · Thu Jan 01 00:00:00 EST 1981

DOI:https://doi.org/10.2172/6169450· OSTI ID:6169450

Weare, J H

The mineral solubility model of Harvie and Weare (1980) is extended to the eight component system, Na-K-Ca-Mg-H-Cl-SO{sub 4}-OH-HCO{sub 3}-CO{sub 3}-CO{sub 2}-H{sub 2}O at 25{sup 0}C to high concentrations. The model is based on the semi-empirical equations of Pitzer (1973) and co-workers for the thermodynamics of aqueous electrolyte solutions. The model is parameterized using many of the available isopiestic, electromotive force, and solubility data available for many of the subsystems. The predictive abilities of the model are demonstrated by comparison to experimental data in systems more complex than those used in parameterization. The essential features of a chemical model for aqueous electrolyte solutions and the relationship between pH and the equilibrium properties of a solution are discussed.

• Research Organization: California Univ., San Diego, La Jolla (USA). Dept. of Chemistry
• DOE Contract Number: AT03-81SF11563
• OSTI ID: 6169450
• Report Number(s): DOE/SF/11563-T1; ON: DE83011632
• Resource Relation: Other Information: Portions are illegible in microfiche products
• Country of Publication: United States
• Language: English

Related Subjects

15 GEOTHERMAL ENERGY
BRINES
SOLVENT PROPERTIES
GEOTHERMAL FLUIDS
MINERALS
SOLUBILITY
ACID CARBONATES
AQUEOUS SOLUTIONS
CALCIUM COMPOUNDS
CARBONATES
CHLORIDES
ELECTROLYTES
EQUILIBRIUM
GROUND WATER
HYDROXIDES
MAGNESIUM COMPOUNDS
MATHEMATICAL MODELS
PH VALUE
POTASSIUM COMPOUNDS
SODIUM COMPOUNDS
SULFATES
THERMAL WATERS
ALKALI METAL COMPOUNDS
ALKALINE EARTH METAL COMPOUNDS
CARBON COMPOUNDS
CHLORINE COMPOUNDS
DISPERSIONS
FLUIDS
HALIDES
HALOGEN COMPOUNDS
HYDROGEN COMPOUNDS
MIXTURES
OXYGEN COMPOUNDS
SOLUTIONS
SULFUR COMPOUNDS
WATER
Geothermal Legacy
152001* - Geothermal Data & Theory- Properties of Aqueous Solutions