Kolbe Electrolysis

2CH3COO → C2H6 + 2CO2 + 2e

概述

Kolbe electrolysis oxidizes carboxylate anions at the anode, decarboxylating them to form alkyl radicals that dimerize. Two acetate ions lose CO₂ to form two methyl radicals that couple to produce ethane. This is one of the oldest electroorganic reactions, discovered in 1849.

参与者

角色 物质 系数 状态
反应物 Acetic Acid CH₃COOH 2 (aq)
产物 Ethane C₂H₆ 1 (g)
产物 Carbon Dioxide CO₂ 2 (g)

日常示例

The Kolbe reaction demonstrates how electricity can drive chemical reactions, connecting organic chemistry to electrochemistry.

工业重要性

科尔比电解反应是电化学合成有机分子的经典方法,通过脱羧偶联将两分子羧酸根连接成更长碳链的烷烃。工业上利用该原理合成癸烷(C₁₀H₂₂)和其他对称烷烃,以及用于电化学研究和特种化学品的小规模生产。绿色化学中,科尔比电解因无需有机溶剂和氧化剂而受到关注。

Frequently Asked Questions

What is the equation for Kolbe Electrolysis?
The balanced equation is: 2CH₃COO⁻ → C₂H₆ + 2CO₂ + 2e⁻.
What type of reaction is Kolbe Electrolysis?
Kolbe Electrolysis is a organic reaction.
Is Kolbe Electrolysis exothermic or endothermic?
Kolbe Electrolysis is endothermic (absorbs energy).