A one-term extrapolation method for estimating equilibrium constants of aqueous reactions at elevated temperatures

SUPCRT92: A software package for calculating the standard molal thermodynamic properties of minerals, gases, aqueous species, and reactions from 1 to 5000 bar and 0 to 1000°C

James W. Johnson, Éric H. Oelkers, Harold C. Helgeson · Computers & Geosciences · 1992 · 2.6K citations

Natural Sciences, Earth Sciences, Geology +16

Theoretical prediction of the thermodynamic behavior of aqueous electrolytes by high pressures and temperatures; IV, Calculation of activity coefficients, osmotic coefficients, and apparent molal and standard and relative partial molal properties to 600 degrees C and 5kb

H. C. Helgeson, D. H. Kirkham, G Flowers · American Journal of Science · 1981 · 1.8K citations

Natural Sciences, Chemistry, Earth Sciences +17

Thermodynamics of hydrothermal systems at elevated temperatures and pressures

Harold C. Helgeson · American Journal of Science · 1969 · 1.5K citations · Full text

Natural Sciences, Chemical Engineering, Chemistry +15

A Fundamental Equation of State for Heavy Water

Philip G. Hill, R. D. Chris MacMillan, V. Lee · Journal of Physical and Chemical Reference Data · 1982 · 1.5K citations

Natural Sciences, Chemistry, Physical Chemistry +16

Calculation of the thermodynamic and transport properties of aqueous species at high pressures and temperatures: Correlation algorithms for ionic species and equation of state predictions to 5 kb and 1000°C

Everett L. Shock, Harold C. Helgeson · Geochimica et Cosmochimica Acta · 1988 · 1K citations

Natural Sciences, Chemistry, Physics +17