DATABASE C:\Program Files\USGS\Phreeqc Interactive 2.6\phreeqc.dat
# IS.8 Exercise
SOLUTION 1
    temp      25
    pH        7
    pe        4
    redox     pe
    units     mmol/kgw
    density   1
    Fe        1
    S         1
    -water    1 # kg
SOLUTION 2
    temp      25
    pH        7
    pe        4
    redox     pe
    units     mmol/kgw
    density   1
    Fe(2)     1
    S         1
    -water    1 # kg
SOLUTION 3
    temp      25
    pH        7
    pe        4
    redox     pe
    units     mmol/kgw
    density   1
    Fe(3)     1
    S         1
    -water    1 # kg
SOLUTION 4
    temp      25
    pH        7
    pe        4
    redox     pe
    units     mmol/kgw
    density   1
    Fe        1
    S(6)      1
    -water    1 # kg
SOLUTION 5
    temp      25
    pH        7
    pe        4
    redox     pe
    units     mmol/kgw
    density   1
    Fe        1
    S(-2)     1
    -water    1 # kg
SOLUTION 6
    temp      25
    pH        7
    pe        4
    redox     Fe(2)/Fe(3)
    units     mmol/kgw
    density   1
    Fe(2)     1
    Fe(3)     1
    S         1
    -water    1 # kg
END