Project summary: Physical chemistry of geothermal systems
We have completed solubility studies on gibbsite to 100{degrees}C in several electrolyte media and derived speciation of Al{sup 3+} in solution; defined the ionization constant for HSO{sub 4} at 250{degrees}C in brine compositions to 5 molal and completed measurements of the ion-interaction parameters for NaHSO{sub 4}(aq) to 250{degrees}C; measured volatility of HCl over aqueous HCl to 350{degrees}C and applied derived model to the conditions of the Geysers; and completed measurements of the effects of NaCl and KCl on D/H and {sup 18}O/{sup 16}O liquid-vapor partitioning are complete to 100{degrees}C and to 6 molal. Studies on the effects of MgCl{sub 2} and CaCl{sub 2} and their mixtures are underway.
- Research Organization:
- Oak Ridge National Lab., TN (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC05-84OR21400
- OSTI ID:
- 10106371
- Report Number(s):
- CONF-911270--1; ON: DE92004342
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
400201
58 GEOSCIENCES
580000
ACID SULFATES
ALUMINIUM COMPOUNDS
ALUMINIUM HYDROXIDES
ALUMINIUM IONS
BRINES
CHARGED PARTICLES
CHEMICAL AND PHYSICOCHEMICAL PROPERTIES
CHLORINE COMPOUNDS
ELEMENTS
GEOSCIENCES
GIBBSITE
HALOGEN COMPOUNDS
HYDROCHLORIC ACID
HYDROGEN
HYDROGEN COMPOUNDS
HYDROXIDES
INORGANIC ACIDS
IONIZATION
IONS
ISOTOPES
MINERALS
NONMETALS
OXIDE MINERALS
OXYGEN
OXYGEN COMPOUNDS
PARTITION
PHYSICAL PROPERTIES
SOLUBILITY
SULFATES
SULFUR COMPOUNDS
THERMODYNAMIC PROPERTIES
VOLATILITY