Aluminum Reducing Chromium Oxide (Aluminothermic)

2Al + Cr₂O₃ → Al₂O₃ + 2Cr

Visão geral

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.

Participantes

Papel	Substância	Coeficiente	Estado
Reagente	Aluminum Al	2	(s)
Produto	Aluminum Oxide Al₂O₃	1	(s)
Produto	Chromium Cr	2	(l)

Exemplo do cotidiano

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

Importância industrial

A redução aluminotérmica é utilizada comercialmente para produzir crómio, manganês e outros metais difíceis de reduzir por redução convencional com carbono.

Propriedades

Tipo: Single Replacement
Reversível: Não
Energia: Exotérmico
ΔH: -536,0 kJ/mol

Reações relacionadas

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.