# How can I get "Fe"_2"O"_3 and "FeO" from "Fe"?

Mar 19, 2017

$2 F e \left(s\right) + {O}_{2} \left(g\right) \to 2 F e O \left(s\right)$
$4 F e \left(s\right) + 3 {O}_{2} \left(g\right) \to 2 F {e}_{2} {O}_{3} \left(s\right)$

#### Explanation:

$F e O$ is rare in nature:

$2 F e \left(s\right) + {O}_{2} \left(g\right) \to 2 F e O \left(s\right)$

If you start with iron ($F e$), you can expose it to oxygen and water and it will rust to get $F {e}_{2} {O}_{3}$ (iron III oxide):

$4 F e \left(s\right) + 3 {O}_{2} \left(g\right) \to 2 F {e}_{2} {O}_{3} \left(s\right)$

If you are interested, usually you start with an iron ore such as hematite $F {e}_{2} {O}_{3}$ and burn carbon with some air to get $C O$. This reaction gets $F e$: $F {e}_{2} {O}_{3} + 3 C O \to 2 F e + 3 C {O}_{2}$