Cerium(IV) Reduction by Iron(II)

Ce⁴⁺ + Fe²⁺ → Ce³⁺ + Fe³⁺

Overview

Cerium(IV) is a strong oxidizing agent that oxidizes iron(II) to iron(III) in a one-electron transfer. This reaction has a 1:1 stoichiometry, making it useful for precise titrations. Cerium(IV) solutions are yellow while cerium(III) is colorless, providing a visual endpoint.

Participants

Role	Substance	Coefficient	State
Reactant	Cerium Ce	1	(aq)
Product	Iron Fe	1	(aq)

Everyday Example

Cerimetry is taught in analytical chemistry courses as an alternative to permanganate titrations with certain advantages in precision.

Industrial Importance

Cerimetric titration is used in pharmaceutical analysis, environmental monitoring, and in the nuclear industry for uranium and plutonium assays.

Properties

Type: Redox
Reversible: No
Energy: Exothermic
ΔH: -88.0 kJ/mol

Related Reactions

Aqua Regia Dissolving Gold Bleaching with Sodium Hypochlorite Chlorine Oxidation of Bromide Chromate-Dichromate Equilibrium Contact Process SO₂ Oxidation Copper Displaced by Iron Copper Oxidation by Nitric Acid Copper Patina Formation (Verdigris) Copper Reduction of Silver Ion Dichromate Oxidation of Ethanol

Frequently Asked Questions

What is the equation for Cerium(IV) Reduction by Iron(II)?

The balanced equation is: Ce⁴⁺ + Fe²⁺ → Ce³⁺ + Fe³⁺.

What type of reaction is Cerium(IV) Reduction by Iron(II)?

Cerium(IV) Reduction by Iron(II) is a redox reaction.

Is Cerium(IV) Reduction by Iron(II) exothermic or endothermic?

Cerium(IV) Reduction by Iron(II) is exothermic (releases energy). The enthalpy change (ΔH) is -88.0 kJ/mol.