PT - JOURNAL ARTICLE AU - Helgeson, Harold C. AU - Kirkham, David H. AU - Flowers, George C. TI - 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 AID - 10.2475/ajs.281.10.1249 DP - 1981 Dec 01 TA - American Journal of Science PG - 1249--1516 VI - 281 IP - 10 4099 - http://www.ajsonline.org/content/281/10/1249.short 4100 - http://www.ajsonline.org/content/281/10/1249.full SO - Am J Sci1981 Dec 01; 281