SOLUTIONS (AQUEOUS) IN FThelg
[FThelg-AQID] Aqueous
Aqueous ideal dilute solution of over 1400 solute species taken from the GEOPIG-SUPCRT Helgeson public database.
Generally valid up to approximately 0.001 molal.
For temperatures up to 350o C and pressures to 165 bar. Uses the Helgeson equation of state.
NEVER select more than one of FThelg-AQID, FThelg-AQDH or FThelg-AQDD simultaneously.
[FThelg-AQDH] Aqueous
Aqueous Debye-Huckel dilute solution of over 1400 solute species with infinite dilution properties taken from the GEOPIG-SUPCRT Helgeson public database.
Incorporating the Debye-Huckel equation.
Generally valid up to approximately 0.02 molal.
For temperatures up to 350o C and pressures to 165 bar. Uses the Helgeson equation of state.
NEVER select more than one of FThelg-AQID, FThelg-AQDH or FThelg-AQDD simultaneously.
[FThelg-AQDD] Aqueous
Aqueous Debye-Huckel-Davies dilute solution of over 1400 solute species with infinite dilution properties taken from the GEOPIG-SUPCRT Helgeson public database.
Incorporating the extended Debye-Huckel (Davies) equation.
Generally valid up to approximately 0.5 molal.
For temperatures up to 350o C and pressures to 165 bar. Uses the Helgeson equation of state.
NEVER select more than one of FThelg-AQID, FThelg-AQDH or FThelg-AQDD simultaneously.