mu_factor 4 Viscosity factor
DFe 0.7e-7[dm^2/s]/mu_factor Diffusion coefficient, Fe2+
DFeOH 1e-7[dm^2/s]/mu_factor Diffusion coefficient, FeOH+
DNa 1.3e-7[dm^2/s]/mu_factor Diffusion coefficient, Na+
DCH3COOH 1.1e-7[dm^2/s]/mu_factor Diffusion coefficient, CH3COOH
DCH3COO 1.1e-7[dm^2/s]/mu_factor Diffusion coefficient, CH3COO-
DCH3COOFe 1.1e-7[dm^2/s]/mu_factor Diffusion coefficient, CH3COOFe+
K1 1.63e-7 Equilibrium constant, iron dissolution in water
Kw 1.0113e-14[mol^2/dm^6] Equilibrium constant, water protonization
K2 1.75e-5 Equilibrium constant, acetic acid protonization
K3 25.1 Equilibrium constant, iron dissolution in acetic acid
cCH3COO_mix 0.5[mol/dm^3] Mixture amount CH3COO-
cCH3COOH_mix 0.5[mol/dm^3] Mixture amount CH3COOH
L 10[mm] Crevice length
w 0.5[mm] Crevice width
T 298.15[K] Temperature
pH0 4.8 Initial pH
cH0 10^(-pH0)[mol/dm^3] Initial concentration, H+
cOH0 (Kw/cH0) Initial concentration, OH-
delta_c0 (K2*cCH3COOH_mix-cH0*cCH3COO_mix/1[mol/dm^3])/(cH0/1[mol/dm^3]+K2) Change in mixture concentration due to equilibrium reactions
cCH3COOH0 cCH3COOH_mix-delta_c0 Initial concentration, CH3COOH
cCH3COO0 cCH3COO_mix+delta_c0 Initial concentration, CH3COO-
cFe0 1[mol/m^3] Initial concentration, Fe2+
cFeOH0 K1*cFe0/cH0*1[mol/dm^3] Initial concentration, FeOH+
cCH3COOFe0 K3*cCH3COO0*cFe0/1[mol/dm^3] Initial concentration, CH3COOFe+
cNa0 cOH0+cCH3COO0-(2*cFe0+cFeOH0+cH0+cCH3COOFe0) Initial concentration, Na+ (from electroneutrality)
phil_mouth 0.16[V] Measured electrolyte potential at crevice mouth vs. SHE
V_pol 0.84[V] Polarization potential vs. SHE