Formation of Iron(III) Oxide

4Fe + 3O₂ → 2Fe₂O₃

Visão geral

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.

Participantes

Papel	Substância	Coeficiente	Estado
Reagente	Oxygen O	3	(g)
Reagente	Iron Fe	4	(s)
Produto	Iron(III) Oxide Fe₂O₃	2	(s)

Exemplo do cotidiano

Rusting of iron nails, cars, and bridges left exposed to air and moisture is this reaction occurring slowly over time.

Importância industrial

Compreender a oxidação do ferro é crucial para a prevenção da corrosão na construção, nos transportes e nas infraestruturas. A proteção anticorrosão custa globalmente biliões por ano; galvanização, pintura e ânodos de sacrifício são soluções comuns.

Propriedades

Tipo: Synthesis
Reversível: Não
Energia: Exotérmico
ΔH: -1648,4 kJ/mol

Reações relacionadas

Formation of Calcium Hydroxide Formation of Carbon Monoxide Formation of Nitrogen Dioxide Formation of Potassium Chloride Formation of Sodium Bicarbonate Formation of Sodium Peroxide Formation of Silicon Dioxide Formation of Tungsten Carbide Formation of Copper(II) Sulfide Fischer-Tropsch Synthesis (General)

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.