Permanganate Reduction in Basic Solution

2MnO4− + H2O + 3e− → 2MnO2 + 4OH−

개요

In basic or neutral solution, permanganate is reduced to manganese dioxide (MnO₂) rather than Mn²⁺. The purple solution produces a brown precipitate of MnO₂. This half-reaction is important in organic chemistry where KMnO₄ selectively oxidizes alkenes to diols under mild basic conditions (Baeyer test).

참여 물질

역할 물질 계수 상태
반응물 Water H₂O 1 (l)

일상 속 예시

The Baeyer test uses cold dilute KMnO₄ to detect C=C double bonds in organic molecules, turning purple to brown with a precipitate.

산업적 중요성

염기성 과망간산 산화는 유기 합성에서 알켄의 제어 산화와 수처리에서 맛과 냄새 제거에 사용됩니다.

성질

유형
Redox
가역 반응
아니오
에너지
발열

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 Reduction in Basic Solution?
The balanced equation is: 2MnO₄⁻ + H₂O + 3e⁻ → 2MnO₂ + 4OH⁻.
What type of reaction is Permanganate Reduction in Basic Solution?
Permanganate Reduction in Basic Solution is a redox reaction.
Is Permanganate Reduction in Basic Solution exothermic or endothermic?
Permanganate Reduction in Basic Solution is exothermic (releases energy).