Permanganate Oxidation of Oxalic Acid

2MnO4− + 5C2O42− + 16H+ → 2Mn2+ + 10CO2 + 8H2O

개요

Permanganate oxidizes oxalate to CO₂ while Mn(VII) is reduced to Mn(II). This reaction is autocatalytic: the Mn²⁺ product catalyzes the reaction, so it starts slowly and accelerates dramatically. The purple permanganate is decolorized as the reaction proceeds. It is a classic redox titration used in analytical chemistry.

참여 물질

역할 물질 계수 상태
반응물 Oxalic Acid C₂H₂O₄ 5 (aq)
생성물 Water H₂O 8 (l)
생성물 Carbon Dioxide CO₂ 10 (g)

일상 속 예시

This reaction demonstrates autocatalysis: the first drops of permanganate decolorize slowly, but later drops disappear almost instantly.

산업적 중요성

과망간산-옥살산 적정은 과망간산 용액 표준화와 자가촉매 반응속도론의 교육 예시로 사용됩니다.

성질

유형
Redox
가역 반응
아니오
에너지
발열
ΔH
-489.0 kJ/mol

관련 반응

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 Oxalic Acid?
The balanced equation is: 2MnO₄⁻ + 5C₂O₄²⁻ + 16H⁺ → 2Mn²⁺ + 10CO₂ + 8H₂O.
What type of reaction is Permanganate Oxidation of Oxalic Acid?
Permanganate Oxidation of Oxalic Acid is a redox reaction.
Is Permanganate Oxidation of Oxalic Acid exothermic or endothermic?
Permanganate Oxidation of Oxalic Acid is exothermic (releases energy). The enthalpy change (ΔH) is -489.0 kJ/mol.