Fenton's Reaction
Fe2+ + H2O2 → Fe3+ + OH− + OH·
概要
Fenton's reagent generates highly reactive hydroxyl radicals (OH·) from iron(II) and hydrogen peroxide. The hydroxyl radical is one of the strongest oxidizers known, capable of degrading virtually any organic compound. Fe²⁺ is oxidized to Fe³⁺ while H₂O₂ is reduced.
参加者
| 役割 | 物質 | 係数 | 状態 |
|---|---|---|---|
| 反応物 | Hydrogen Peroxide H₂O₂ | 1 | (aq) |
日常の例
Fenton's chemistry occurs naturally in the body when iron and hydrogen peroxide interact, which is why excess free iron can cause oxidative damage.
産業上の重要性
フェントン試薬は難分解性有機汚染物質の分解に廃水処理で利用され、土壌浄化や漂白にも応用される。水処理コストの削減につながる電気フェントン法への改良が進んでいる。
特性
- タイプ
- Redox
- 可逆的
- いいえ
- エネルギー
- 発熱性
- ΔH
- -40.0 kJ/mol
関連する反応
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)
Copper Oxidation by Nitric Acid
Hypochlorite Oxidation of Hydrogen Peroxide
Hydrogen Peroxide as Oxidizing Agent (Acidic)
Hydrogen Peroxide Disproportionation
Displacement of Hydrogen from Acid by Magnesium
Frequently Asked Questions
What is the equation for Fenton's Reaction?
The balanced equation is: Fe²⁺ + H₂O₂ → Fe³⁺ + OH⁻ + OH·.
What type of reaction is Fenton's Reaction?
Fenton's Reaction is a redox reaction.
Is Fenton's Reaction exothermic or endothermic?
Fenton's Reaction is exothermic (releases energy). The enthalpy change (ΔH) is -40.0 kJ/mol.