❓ why
Why does iron rust more readily than some other metals?
ChemistryCorrosion
Quick Answer
Iron rusts because it reacts with oxygen and water to form iron oxides. Unlike metals that form protective coatings, rust is porous and lets corrosion continue.
The Full Story
Rusting is a form of oxidation in which iron or steel reacts with oxygen in the presence of water or moisture. The result is a mixture of iron oxides and hydrated iron oxides, commonly called rust. Unlike aluminum, which forms a thin protective oxide layer, rust flakes away and exposes fresh metal underneath, so the process keeps going. Salt water speeds rusting because dissolved ions help the electrochemical reactions proceed more quickly.
Key Facts
1.Rust is mainly iron oxide and hydrated iron oxide
2.Water and oxygen are both needed for typical rusting
3.Salt water accelerates corrosion
YouTube Angle
Suggested video title for this topic:
"Why does iron slowly eat itself away?"