Thermal Decomposition of Potassium Permanganate

2KMnO4 → K2MnO4 + MnO2 + O2

개요

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.

참여 물질

역할 물질 계수 상태
생성물 Oxygen O 1 (g)

일상 속 예시

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

산업적 중요성

맛과 냄새 제어를 위한 수처리, 분석화학의 산화제, 유기 합성에 사용됩니다. 분해 이해는 안전한 저장에 중요합니다.

성질

유형
Decomposition
가역 반응
아니오
에너지
흡열
ΔH
171.0 kJ/mol

관련 반응

Decomposition of Ammonium Nitrate Decomposition of Calcium Hypochlorite Decomposition of Carbonic Acid Decomposition of Iron(II,III) Oxide (Direct Reduction) Decomposition of Nitrous Oxide (Laughing Gas) Decomposition of Barium Peroxide Decomposition of Sodium Bicarbonate Decomposition of Water (Electrolysis) Thermal Decomposition of Copper(II) Carbonate Cracking of Octane (Thermal Cracking)

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.