UCO3psi.ppi

SPECIATION
  jobTitle                             "Uranium redox and speciation"
  Database                             "NAPSI_290502(260802).DAT"
  calculationType                      "ht1"
  calculationMethod                    1
  mainSpecies                          "U"
  xmin                                 2.0
  xmax                                 10.0
  ymin                                 -80.0
  ymax                                 0.0
  loopmin                              -6
  loopmax                              -6
  loopint                              0
  looplogvar                           1
  resolution                           500

PLOT
  plotTitle                            "Uranium hydrolysis and redox (NAPSI)"
  xtitle                               "pH"
  ytitle                               "log <i>f</i> O<sub>2</sub>(g)"
  extraText                            "extratextUCO3.dat"

CHEMISTRY

include 'ht1.inc' 

SOLUTION 1
   temp  25
   pH    1.8
   units mol/kgw
   U     1e-6
   Na    1e-1
   Cl    1e-1
END

USE solution 1
EQUILIBRIUM_PHASES 1
   Fix_H+ -<x_axis>  NaOH 10
     -force_equality true
   O2(g)  <y_axis>  0.1
   CO2(g) -3.5      1.0

END