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
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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.