Powdered aluminum is used in the thermite reaction for welding metals, so what role does the powdered aluminum play in this reaction?Powdered aluminum in a reaction.......?
Thermite is a pyrotechnic composition of aluminium powder and a metal oxide which produces an aluminothermic reaction known as a thermite reaction. It is not explosive, but can create short bursts of extremely high temperatures focused on a very small target for a short period of time.
**** The aluminium reduces the oxide of another metal, most commonly iron oxide, because aluminium is highly combustible:
Fe2O3 + 2Al -%26gt; 2Fe + Al2O3 + Heat
The products are aluminium oxide, free elemental iron, and a large amount of heat. The reactants are commonly powdered and mixed with a binder to keep the material solid and prevent separation.
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