Tin(II) Reduction to Tin(IV)

Sn2+ + 2Fe3+ → Sn4+ + 2Fe2+

Overview

Tin(II) ions reduce iron(III) to iron(II) while being oxidized to tin(IV). Stannous chloride (SnCl₂) is a widely used reducing agent in analytical chemistry. This redox reaction is used to pre-reduce iron(III) before titration with permanganate or dichromate.

Participants

Role Substance Coefficient State
Reactant Tin Sn 1 (aq)
Product Iron Fe 2 (aq)

Everyday Example

SnCl₂ is used in the mirror silvering process and as a sensitizer before electroless plating of plastics.

Industrial Importance

Tin(II) chloride is used in tin plating, as a reducing agent in organic synthesis, in the production of mirrors, and in analytical chemistry.

Properties

Type
Redox
Reversible
No
Energy
Exothermic
ΔH
-37.0 kJ/mol

Related Reactions

Aqua Regia Dissolving Gold Bleaching with Sodium Hypochlorite Cerium(IV) Reduction by Iron(II) 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

Frequently Asked Questions

What is the equation for Tin(II) Reduction to Tin(IV)?
The balanced equation is: Sn²⁺ + 2Fe³⁺ → Sn⁴⁺ + 2Fe²⁺.
What type of reaction is Tin(II) Reduction to Tin(IV)?
Tin(II) Reduction to Tin(IV) is a redox reaction.
Is Tin(II) Reduction to Tin(IV) exothermic or endothermic?
Tin(II) Reduction to Tin(IV) is exothermic (releases energy). The enthalpy change (ΔH) is -37.0 kJ/mol.