Hydrogen Peroxide Disproportionation

2H2O2 → 2H2O + O2

개요

Hydrogen peroxide simultaneously acts as both oxidizing and reducing agent in this disproportionation reaction. One molecule is reduced to water (O goes from -1 to -2) while another is oxidized to oxygen gas (O goes from -1 to 0). Manganese dioxide or the enzyme catalase dramatically accelerate this reaction.

참여 물질

역할 물질 계수 상태
반응물 Hydrogen Peroxide H₂O₂ 2 (aq)
생성물 Oxygen O 1 (g)
생성물 Water H₂O 2 (l)

일상 속 예시

The fizzing when hydrogen peroxide is applied to a wound occurs because catalase enzyme in blood rapidly decomposes H₂O₂, releasing oxygen bubbles.

산업적 중요성

산소 발생 반응을 이용한 공업적 산소 생산, 잠수함 비상 산소 공급, 로켓 추진제(고농도 H₂O₂)에 활용됩니다. 하수 처리의 탈산소화에도 응용됩니다.

성질

유형
Redox
가역 반응
아니오
에너지
발열
ΔH
-196.1 kJ/mol
촉매
MnO₂ or catalase enzyme

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 Hydrogen Peroxide Disproportionation?
The balanced equation is: 2H₂O₂ → 2H₂O + O₂.
What type of reaction is Hydrogen Peroxide Disproportionation?
Hydrogen Peroxide Disproportionation is a redox reaction.
Is Hydrogen Peroxide Disproportionation exothermic or endothermic?
Hydrogen Peroxide Disproportionation is exothermic (releases energy). The enthalpy change (ΔH) is -196.1 kJ/mol.
What conditions are needed for Hydrogen Peroxide Disproportionation?
This reaction requires a catalyst (MnO₂ or catalase enzyme).