;here is the Acuchem input file
1101

A1, Air = O2 , 1.E6 ;
A2, O2 = Air , 1.E12 ;
B1, Fe2 + O2 = O2rm + O2 , 1.E-4;
B2, Fe2 + O2rm = i + H2O2 , 1.E7;
H1, O2rm = H20 , 1.E12 ;
H2, H20 = O2rm , 1.58E7 ;
B3, Fe2 + H20 = Fe3 + H2O2 , 1.2E6;
B4, Fe2 + OHr = Fe3 , 3.2E8;
C1, Fe2 + H2O2 = Int , 70
D1, Fe2 = Fe2OH , 3.09E2
D2, Fe2OH = Fe2 , 1E12
C2, Fe2OH + H2O2 = IntOH , 1.35E+07
C3, Int = IntOH , 5.75E+06; Fe2t long reaction times, most of
C4, IntOH = Int , 1.E12; the n is converted to p
C5, Int = Fe3OH + OHr , 1.E6
C6, IntOH = Fe4 , 1.E6
C7, Fe4 + Fe2 = Fe3 , 1.9E+03
;
C8, Fe4 + Fe2OH = Fe3 , 1.34E+08;
E1, Fe3 + O2rm = Fe2 + O2 , 1.5E8;
E2, Fe3OH+ O2rm = Fe2 + O2 , 1.5E8;
E3, Fe3OH2 + O2rm = Fe2 + O2 , 1.5E8 ;
;
F1, H20 + O2rm = H2O2 , 9.7E7 ;
F2, H20 + H20 = H2O2 , 8.3E5 ; 
F3, H2O2 + OHr = H20 , 3.E7 ;
;
G1, Fe3 = Fe3OH , 4.57E9 ;
G2, Fe3OH = Fe3 , 1.E12 ;
G3, Fe3OH = Fe3OH2 , 2.51E8 ;
G4, Fe3OH2 = Fe3OH , 1.E12 ;

;alows for surface generation of c
END
Fe2, 8.E-4; change by factors of 2
H2O2, 6.E-5
Air, 250
O2, 250E-5
END
0.001