Permanganate Oxidation of Iron(II)

MnO4− + 5Fe2+ + 8H+ → Mn2+ + 5Fe3+ + 4H2O

Aperçu

Permanganate ion is a powerful oxidizing agent that oxidizes iron(II) to iron(III) while being reduced from Mn(VII) to Mn(II) in acidic solution. The dramatic color change from deep purple KMnO₄ to nearly colorless Mn²⁺ makes this reaction self-indicating in titrations.

Participants

Rôle Substance Coefficient État
Produit Water H₂O 4 (l)

Exemple du quotidien

Potassium permanganate's purple color is used in water purification systems and as a disinfectant for fruits and vegetables in some countries.

Importance industrielle

Permanganate titration (permanganometry) is a standard analytical method for determining iron content in ores, water, and environmental samples.

Propriétés

Type
Redox
Réversible
Non
Énergie
Exothermique
ΔH
-536,0 kJ/mol

Réactions associées

Iron(II) to Iron(III) Oxidation by Oxygen Bleaching with Sodium Hypochlorite Copper Reduction of Silver Ion Aqua Regia Dissolving Gold Cerium(IV) Reduction by Iron(II) Chlorine Oxidation of Bromide Copper Oxidation by Nitric Acid Hypochlorite Oxidation of Hydrogen Peroxide Hydrogen Peroxide as Oxidizing Agent (Acidic) Displacement of Hydrogen from Acid by Magnesium

Frequently Asked Questions

What is the equation for Permanganate Oxidation of Iron(II)?
The balanced equation is: MnO₄⁻ + 5Fe²⁺ + 8H⁺ → Mn²⁺ + 5Fe³⁺ + 4H₂O.
What type of reaction is Permanganate Oxidation of Iron(II)?
Permanganate Oxidation of Iron(II) is a redox reaction.
Is Permanganate Oxidation of Iron(II) exothermic or endothermic?
Permanganate Oxidation of Iron(II) is exothermic (releases energy). The enthalpy change (ΔH) is -536.0 kJ/mol.