Thermite Reaction

2Al + Fe₂O₃ → Al₂O₃ + 2Fe

Visão geral

Aluminum reduces iron(III) oxide in this extremely exothermic redox reaction, reaching temperatures above 2500 C. Aluminum is oxidized from Al⁰ to Al³⁺ (losing 3 electrons) while iron is reduced from Fe³⁺ to Fe⁰. Once ignited, the reaction is self-sustaining and produces molten iron.

Participantes

Papel	Substância	Coeficiente	Estado
Reagente	Iron(III) Oxide Fe₂O₃	1	(s)
Reagente	Aluminum Al	2	(s)
Produto	Aluminum Oxide Al₂O₃	1	(s)
Produto	Iron Fe	2	(l)

Exemplo do cotidiano

Railroad workers use thermite welding to join rail sections in the field, pouring molten iron into a mold around the rail joint.

Importância industrial

A soldadura de termite é utilizada na reparação de carris ferroviários, soldadura de condutas e corte de metais. A temperatura extrema da reação torna-a útil para aplicações metalúrgicas especializadas.

Propriedades

Tipo: Redox
Reversível: Não
Energia: Exotérmico
ΔH: -851,5 kJ/mol

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Frequently Asked Questions

What is the equation for Thermite Reaction?

The balanced equation is: 2Al + Fe₂O₃ → Al₂O₃ + 2Fe.

What type of reaction is Thermite Reaction?

Thermite Reaction is a redox reaction.

Is Thermite Reaction exothermic or endothermic?

Thermite Reaction is exothermic (releases energy). The enthalpy change (ΔH) is -851.5 kJ/mol.