Formation of Iron(III) Oxide
4Fe + 3O2 → 2Fe2O3
Overview
Iron reacts with oxygen to form iron(III) oxide, commonly known as rust. This oxidation process occurs slowly in the presence of moisture and air. When iron burns in pure oxygen, the reaction is rapid and spectacular, producing bright sparks.
Participants
| Role | Substance | Coefficient | State |
|---|---|---|---|
| Reactant | Oxygen O | 3 | (g) |
| Reactant | Iron Fe | 4 | (s) |
| Product | Iron(III) Oxide Fe₂O₃ | 2 | (s) |
Everyday Example
Rusting of iron nails, cars, and bridges left exposed to air and moisture is this reaction occurring slowly over time.
Industrial Importance
Understanding iron oxidation is crucial for corrosion prevention in construction and manufacturing. Iron oxide is also used as a pigment and in magnetic storage media.
Properties
- Type
- Synthesis
- Reversible
- No
- Energy
- Exothermic
- ΔH
- -1648.4 kJ/mol
Related Reactions
Fischer-Tropsch Synthesis (General)
Formation of Aluminum Oxide
Formation of Ammonia (Haber Process)
Formation of Barium Oxide
Formation of Barium Sulfate
Formation of Beryllium Oxide
Formation of Cadmium Oxide
Formation of Calcium Carbonate from Oxides
Formation of Calcium Hydroxide
Formation of Calcium Oxide (Quicklime)
Frequently Asked Questions
What is the equation for Formation of Iron(III) Oxide?
The balanced equation is: 4Fe + 3O₂ → 2Fe₂O₃.
What type of reaction is Formation of Iron(III) Oxide?
Formation of Iron(III) Oxide is a synthesis reaction.
Is Formation of Iron(III) Oxide exothermic or endothermic?
Formation of Iron(III) Oxide is exothermic (releases energy). The enthalpy change (ΔH) is -1648.4 kJ/mol.