TITLE Buffering example using titration
SOLUTION 1
        temp            25
        units           mol/kgw
        ph              7        charge
        Na              .1
        Cl              .1
EQUILIBRIUM_PHASES 1
        Quartz          0.6
        Kaolinite       0.0        .025
        Fe(OH)3(a)      0.0        .01
        Calcite         0.0        .08
        CO2(g)         -3.5
        O2(g)          -0.7
        Gypsum          0.0        0.0
INCREMENTAL_REACTIONS   true
REACTION 1
        H2SO4
        0.25 moles in 100 steps
SELECTED_OUTPUT
        -file           buf_tit
        -reset          false
        -step           true
        -ph             true
        -si             Fe(OH)3(a) Kaolinite Calcite Gypsum
        -equilibrium_phases Fe(OH)3(a) Kaolinite Calcite Gypsum
END