Permanganate Oxidation of Iron(II)
MnO4− + 5Fe2+ + 8H+ → Mn2+ + 5Fe3+ + 4H2O
概要
Permanganate ion is a powerful oxidizing agent that oxidizes iron(II) to iron(III) while being reduced from Mn(VII) to Mn(II) in acidic solution. The dramatic color change from deep purple KMnO₄ to nearly colorless Mn²⁺ makes this reaction self-indicating in titrations.
参加者
| 役割 | 物質 | 係数 | 状態 |
|---|---|---|---|
| 生成物 | Water H₂O | 4 | (l) |
日常の例
Potassium permanganate's purple color is used in water purification systems and as a disinfectant for fruits and vegetables in some countries.
産業上の重要性
過マンガン酸滴定法は鉱石、水、環境試料中の鉄含有量を測定する標準的な分析法である。
特性
- タイプ
- Redox
- 可逆的
- いいえ
- エネルギー
- 発熱性
- ΔH
- -536.0 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 Permanganate Oxidation of Iron(II)?
The balanced equation is: MnO₄⁻ + 5Fe²⁺ + 8H⁺ → Mn²⁺ + 5Fe³⁺ + 4H₂O.
What type of reaction is Permanganate Oxidation of Iron(II)?
Permanganate Oxidation of Iron(II) is a redox reaction.
Is Permanganate Oxidation of Iron(II) exothermic or endothermic?
Permanganate Oxidation of Iron(II) is exothermic (releases energy). The enthalpy change (ΔH) is -536.0 kJ/mol.