Pressure-composition relations for coexisting gases and liquids and the critical points in the system NaCl-H/sub 2/O at 450, 475, and 500/sup 0/Ccks

Journal Article · Tue Sep 01 00:00:00 EDT 1987 · Geochim. Cosmochim. Acta; (United States)

DOI:https://doi.org/10.1016/0016-7037(87)90289-4· OSTI ID:5064930

Rosenbauer, R J; Bischoff, J L

Pressure-temperature-composition (P, T, x) relations for the co-existing vapor and liquid phases in the system NaCl-H/sub 2/O were determined experimentally at 450, 475, and 500/sup 0/C. Data for each isotherm include P-x relations near the critical point and extend to the three-phase assemblage vapor-liquid-halite on the vapor side. On the liquid side the P-x data range from the critical point to the room-temperature halite saturation point (approx. 25 wt.% NaCl). Critical pressures were calculated from measured pressures and compositions and classical theory. The results generally support the few data points of Urusova and Oelander and Liander but differ markedly from the extensive data of Sourirajan and Kennedy.

• Research Organization: Geological Survey, Menlo Park, CA (USA)
• OSTI ID: 5064930
• Journal Information: Geochim. Cosmochim. Acta; (United States), Vol. 51:9
• Country of Publication: United States
• Language: English

Related Subjects

58 GEOSCIENCES
GEOTHERMAL FLUIDS
CHEMICAL COMPOSITION
CRITICAL TEMPERATURE
PHASE STUDIES
HALITE
HYDROTHERMAL ALTERATION
DISSOLUTION
EXPERIMENTAL DATA
HYDROTHERMAL SYSTEMS
ISOTHERMS
PHASE TRANSFORMATIONS
PRESSURE EFFECTS
SATURATION
SEAWATER
SODIUM CHLORIDES
TEMPERATURE EFFECTS
TWO-PHASE FLOW
ALKALI METAL COMPOUNDS
CHLORIDES
CHLORINE COMPOUNDS
DATA
ENERGY SYSTEMS
FLUID FLOW
FLUIDS
GEOTHERMAL SYSTEMS
HALIDE MINERALS
HALIDES
HALOGEN COMPOUNDS
HYDROGEN COMPOUNDS
INFORMATION
MINERALS
NUMERICAL DATA
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
SODIUM COMPOUNDS
THERMODYNAMIC PROPERTIES
TRANSITION TEMPERATURE
WATER
580400* - Geochemistry- (-1989)