Fenton's Reaction

Fe2+ + H2O2 → Fe3+ + OH− + OH·

Visão geral

Fenton's reagent generates highly reactive hydroxyl radicals (OH·) from iron(II) and hydrogen peroxide. The hydroxyl radical is one of the strongest oxidizers known, capable of degrading virtually any organic compound. Fe²⁺ is oxidized to Fe³⁺ while H₂O₂ is reduced.

Participantes

Papel Substância Coeficiente Estado
Reagente Hydrogen Peroxide H₂O₂ 1 (aq)

Exemplo do cotidiano

Fenton's chemistry occurs naturally in the body when iron and hydrogen peroxide interact, which is why excess free iron can cause oxidative damage.

Importância industrial

O reagente de Fenton é utilizado no tratamento de águas residuais para degradar poluentes orgânicos recalcitrantes como corantes têxteis e pesticidas. É uma alternativa económica ao ozono para o tratamento de poluentes orgânicos persistentes.

Propriedades

Tipo
Redox
Reversível
Não
Energia
Exotérmico
ΔH
-40,0 kJ/mol

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Frequently Asked Questions

What is the equation for Fenton's Reaction?
The balanced equation is: Fe²⁺ + H₂O₂ → Fe³⁺ + OH⁻ + OH·.
What type of reaction is Fenton's Reaction?
Fenton's Reaction is a redox reaction.
Is Fenton's Reaction exothermic or endothermic?
Fenton's Reaction is exothermic (releases energy). The enthalpy change (ΔH) is -40.0 kJ/mol.