Permanganate Reduction in Basic Solution

2MnO₄⁻ + H₂O + 3e⁻ → 2MnO₂ + 4OH⁻

Tổng quan

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).

Người tham gia

Vai trò	Chất	Hệ số	Trạng thái
Chất phản ứng	Water H₂O	1	(l)

Ví dụ thực tế

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

Tầm quan trọng công nghiệp

Basic permanganate oxidation is used in organic synthesis for controlled oxidation of alkenes and in water treatment for taste and odor removal.

Tính chất

Loại: Redox
Thuận nghịch: Không
Năng lượng: Tỏa nhiệt

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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).