               |--------------------------------------------------------------------------
               | By default Perple_X includes all chemically relevant species in the 
               | thermodynamic data file
               |--------------------------------------------------------------------------
               | THERMOCALC data exclusions:
               |--------------------------------------------------------------------------
               | h2oL [the water endmember for THERMOCALC melt models] is excluded because 
               | its high-pressure, low-temperature, properties are anomalous and result in 
               | prediction of a low-temperature melt field. This endmember cannot be excluded
               | from super-solidus calculations. In such cases, the calculation can be split
               | into low- and high-temperature sections or the T_melt option can be set to 
               | destabilize the endmember at low temperature.
h2oL
               | tan is a hypothetical talc endmember that is meant for a talc solution model
               | that is not used here.
tan
               |--------------------------------------------------------------------------
               | DEW/HKF data exclusions:
               |--------------------------------------------------------------------------
               | HKF data for ions of amino acids does not extrapolate plausibly to high P
LACTATE,
GLUTARAT
GLYCOLAT
FORMATE,
PROPANOA
ACETATE,
               | HKF data for neutral C-O-H-S-N solute species is generally unreliable
               | for high concentrations, it is therefore preferable to treat these
               | species as solvent species (e.g., CO2, CO, CH4, ...). Regardless of 
               | whether a species is treated as a solute (e.g., CO2,aq) or solvent (e.g. 
               | CO2), it is critical that each species be represented by only one 
               | thermodynamic entity (e.g., keeping both CO2 and CO2,aq) may have 
               | catastrophic consequences.
CO2,aq
CO,aq
METHANE,
H2,aq
O2,aq
H2S,aq
SO2,aq
METHANE,
H2CO3,aq
ACETIC-A
PROPANE,
HEXANE,A
ETHANE,A
ETHANOL,
ETHYLENE
FORMIC-A
BENZENE,
METHANOL
LACTIC-A
LACTATE,
GLUTARIC
GLYCOLIC
PROPANOL
PROPANOI
TOLUENE,