PHASESFe(OH)2 # from llnl.dat Fe(OH)2 + 2H+ = Fe+2 + 2H2O log_k 13.9045 delta_h -95.4089 kJ -analytical_expression -86.666 -0.01844 7572.3 32.597 118.18 0SOLUTION 1 temp 25 pH 8 pe 4 redox pe units umol/kgw density 1 #Fe(2) 1700 -water 1 # kgEQUILIBRIUM_PHASES 1 Fe(OH)3(a) 0 0 Goethite 0 0 Hematite 0 0 Fe(OH)2 0 0REACTION 1 FeCl2 1 1700 micromoles in 100 stepsUSER_GRAPH 1 Example 2 -headings Rxn Fe(OH)3 Goethite Hematite Fe(OH)2 -axis_titles "Concentration of Fe(2), in umol per litre" "Saturation index" "" -chart_title "Fe precipitation" -initial_solutions false -connect_simulations true -plot_concentration_vs x -start10 graph_x rxn20 graph_y SI("Fe(OH)3(a)"), SI("Goethite"), SI("Hematite"), SI("Fe(OH)2") -end -active trueEND