Hydrogen Peroxide as Oxidizing Agent (Acidic)

H2O2 + 2H+ + 2I− → I2 + 2H2O

개요

Hydrogen peroxide oxidizes iodide ions to iodine in acidic solution. H₂O₂ acts as the oxidizing agent, being reduced to water. The appearance of brown iodine (or blue-black with starch indicator) demonstrates the oxidizing power of H₂O₂. This reaction is used in iodometric analysis.

참여 물질

역할 물질 계수 상태
반응물 Hydrogen Peroxide H₂O₂ 1 (aq)
반응물 Iodine I 2 (aq)
생성물 Water H₂O 2 (l)

일상 속 예시

The iodine clock reaction, a popular chemistry demonstration with sudden color changes, uses variations of this H₂O₂-iodide reaction.

산업적 중요성

섬유, 종이, 펄프의 표백제로 염소계 표백제를 대체하는 친환경 산화제입니다. 반도체 세정, 폐수 고급 산화 처리, 화학 합성의 에폭시화·하이드록실화 반응에도 사용됩니다.

성질

유형
Redox
가역 반응
아니오
에너지
발열
ΔH
-210.0 kJ/mol

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 Zinc Reduction of Silver Ion Displacement of Hydrogen from Acid by Magnesium

Frequently Asked Questions

What is the equation for Hydrogen Peroxide as Oxidizing Agent (Acidic)?
The balanced equation is: H₂O₂ + 2H⁺ + 2I⁻ → I₂ + 2H₂O.
What type of reaction is Hydrogen Peroxide as Oxidizing Agent (Acidic)?
Hydrogen Peroxide as Oxidizing Agent (Acidic) is a redox reaction.
Is Hydrogen Peroxide as Oxidizing Agent (Acidic) exothermic or endothermic?
Hydrogen Peroxide as Oxidizing Agent (Acidic) is exothermic (releases energy). The enthalpy change (ΔH) is -210.0 kJ/mol.