Corrosion · Rust
unseel.com · Fe → Fe²⁺ · O₂ reduction · Fe₂O₃·xH₂O
Anode Fe → Fe²⁺+2e⁻
Cathode O₂+2H₂O+4e⁻ → 4OH⁻
Stage —
Iron metal
Anodic site (Fe²⁺)
Cathodic site (O₂)
Water film
Rust
Unseel.com · Corrosion