ex3
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TITLE Example 3, part A.--Calcite equilibrium at log Pco2 = -2.0 and 25C.
SOLUTION 1 Pure water
pH 7.0
temp 25.0
EQUILIBRIUM_PHASES
CO2(g) -2.0
Calcite 0.0
SAVE solution 1
END
TITLE Example 3, part B.--Definition of seawater.
SOLUTION 2 Seawater
units ppm
pH 8.22
pe 8.451
density 1.023
temp 25.0
Ca 412.3
Mg 1291.8
Na 10768.0
K 399.1
Si 4.28
Cl 19353.0
Alkalinity 141.682 as HCO3
S(6) 2712.0
END
TITLE Example 3, part C.--Mix 70% ground water, 30% seawater.
MIX 1
1 0.7
2 0.3
SAVE solution 3
END
TITLE Example 3, part D.--Equilibrate mixture with calcite and dolomite.
EQUILIBRIUM_PHASES 1
Calcite 0.0
Dolomite 0.0
USE solution 3
END
TITLE Example 3, part E.--Equilibrate mixture with calcite only.
EQUILIBRIUM_PHASES 2
Calcite 0.0
USE solution 3
END
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