Aluminum Reducing Chromium Oxide (Aluminothermic)

2Al + Cr2O3 → Al2O3 + 2Cr

Tổng quan

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.

Người tham gia

Vai trò Chất Hệ số Trạng thái
Chất phản ứng Aluminum Al 2 (s)
Sản phẩm Aluminum Oxide Al₂O₃ 1 (s)
Sản phẩm Chromium Cr 2 (l)

Ví dụ thực tế

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

Tầm quan trọng công nghiệp

Aluminothermic reduction is used commercially to produce chromium, manganese, and other metals that are difficult to reduce by conventional carbon reduction.

Tính chất

Loại
Single Replacement
Thuận nghịch
Không
Năng lượng
Tỏa nhiệt
ΔH
-536,0 kJ/mol

Phản ứng liên quan

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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.