Why do iron oxides have different properties to iron and steel, and oxygen gas?

1 Answer
Nov 19, 2016

Because iron oxide is chemically distinct to iron and oxygen. Different materials have different properties.

Explanation:

See this old answer. And also [here.](https://socratic.org/questions/how-are-redox-reactions-involved-in-corrosion?source=search)

The point is that there are several iron oxides known, and oxidation of iron in steel structures is of vital concern to structural engineers.