Thermal Decomposition of Potassium Permanganate

2KMnO₄ → K₂MnO₄ + MnO₂ + O₂

Visão geral

Potassium permanganate, a deep purple crystalline solid, decomposes when heated above 240 C to form potassium manganate, manganese dioxide, and oxygen gas. This is one of the most visually striking decomposition reactions, as the purple solid transforms to green and brown products while releasing gas.

Participantes

Papel	Substância	Coeficiente	Estado
Produto	Oxygen O	1	(g)

Exemplo do cotidiano

Potassium permanganate solution is used as an antiseptic wound wash and water purification agent in camping and survival situations.

Importância industrial

Utilizado no tratamento de água para controlo de sabor e odor, em química analítica como oxidante e em síntese orgânica. Compreender a sua decomposição é importante para armazenamento seguro.

Propriedades

Tipo: Decomposition
Reversível: Não
Energia: Endotérmico
ΔH: 171,0 kJ/mol

Reações relacionadas

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Frequently Asked Questions

What is the equation for Thermal Decomposition of Potassium Permanganate?

The balanced equation is: 2KMnO₄ → K₂MnO₄ + MnO₂ + O₂.

What type of reaction is Thermal Decomposition of Potassium Permanganate?

Thermal Decomposition of Potassium Permanganate is a decomposition reaction.

Is Thermal Decomposition of Potassium Permanganate exothermic or endothermic?

Thermal Decomposition of Potassium Permanganate is endothermic (absorbs energy). The enthalpy change (ΔH) is 171.0 kJ/mol.