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
Magnesium Reacting with Steam
Lithium Reacting with Water
Iron Reacting with Hydrochloric Acid
Iron Displacing Copper from Copper Sulfate
Magnesium Reacting with Hydrochloric Acid
Copper Displacing Silver from Silver Nitrate
Iron Reacting with Copper(II) Chloride
Magnesium Reacting with Sulfuric Acid
Magnesium Reacting with Nitric Acid
Chlorine Displacing Iodine from Potassium Iodide
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.