Aluminum Reducing Chromium Oxide (Aluminothermic)

2Al + Cr2O3 → Al2O3 + 2Cr

概述

Aluminum reduces chromium(III) oxide in an aluminothermic reaction similar to the iron thermite reaction. The reaction produces aluminum oxide and chromium metal at extremely high temperatures. This is one method for producing chromium metal.

参与者

角色 物质 系数 状态
反应物 Aluminum Al 2 (s)
产物 Aluminum Oxide Al₂O₃ 1 (s)
产物 Chromium Cr 2 (l)

日常示例

This type of aluminothermic reaction is one of the methods used to produce the chromium used in stainless steel and chrome plating.

工业重要性

铝热还原法商业上用于生产铬、锰以及其他难以通过常规碳还原法还原的金属。

属性

类型
Single Replacement
可逆
否
能量
放热
ΔH
-536.0 kJ/mol

相关反应

Aluminum Reacting with Iron(III) Oxide (Thermite) Chlorine Displacing Iodine from Potassium Iodide Magnesium Reacting with Steam Lithium Reacting with Water Aluminum Reacting with Hydrochloric Acid Iron Reacting with Hydrochloric Acid Iron Displacing Copper from Copper Sulfate Zinc Displacing Copper from Copper Sulfate Magnesium Reacting with Hydrochloric Acid Fluorine Displacing Chlorine from Sodium Chloride

Frequently Asked Questions

What is the equation for Aluminum Reducing Chromium Oxide (Aluminothermic)?
The balanced equation is: 2Al + Cr₂O₃ → Al₂O₃ + 2Cr.
What type of reaction is Aluminum Reducing Chromium Oxide (Aluminothermic)?
Aluminum Reducing Chromium Oxide (Aluminothermic) is a single replacement reaction.
Is Aluminum Reducing Chromium Oxide (Aluminothermic) exothermic or endothermic?
Aluminum Reducing Chromium Oxide (Aluminothermic) is exothermic (releases energy). The enthalpy change (ΔH) is -536.0 kJ/mol.