Liquid-vapor relations in the critical region of the system NaCl-H2O from 380 to 415°C: A refined determination of the critical point and two-phase boundary of seawater
Geochimica et Cosmochimica Acta
By: James L. Bischoff and Robert J. Rosenbauer
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Abstract
Pressure-temperature-composition (P-T-x) relations for coexisting vapor and liquid phases in the system NaCl-H2O were determined experimentally in the critical region from 380 to 415°C. The results provide much improved control on the P-T-x critical line in this region. The critical point of seawater (3.2 wt% NaCl solution), which is bracketed in the present study, is at 407°C and 298.5 bar. In addition, the P-T two-phase boundary of seawater was re-determined. These results provide increased precision and accuracy for theoretical models of critical phenomena in this important two-component system and of the limiting P- Tconditions of seawater in seafloor geothermal systems.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Liquid-vapor relations in the critical region of the system NaCl-H2O from 380 to 415°C: A refined determination of the critical point and two-phase boundary of seawater |
| Series title | Geochimica et Cosmochimica Acta |
| DOI | 10.1016/0016-7037(88)90192-5 |
| Volume | 52 |
| Issue | 8 |
| Year Published | 1988 |
| Language | English |
| Publisher | Elsevier |
| Description | 6 p. |
| First page | 2121 |
| Last page | 2126 |
| Online Only (Y/N) | N |
| Additional Online Files (Y/N) | N |