Permanganate Oxidation of Iron(II)

MnO4− + 5Fe2+ + 8H+ → Mn2+ + 5Fe3+ + 4H2O

概述

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.

参与者

角色 物质 系数 状态
产物 Water H₂O 4 (l)

日常示例

Potassium permanganate's purple color is used in water purification systems and as a disinfectant for fruits and vegetables in some countries.

工业重要性

高锰酸盐滴定法是测定铁矿石品位和工业废水中铁含量的标准分析方法。

属性

类型
Redox
可逆
否
能量
放热
ΔH
-536.0 kJ/mol

相关反应

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 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.