what is alumino thermi reaction and what is the use of this reaction
Answers
Answer:
An exothermic reaction (evolution of heat) in which Al react with ferric oxide to form aluminium oxide is called alumino thermic reaction and the process is called alumino thermy . it is used to join railway track
Explanation:
It is used in thermite welding of broken iron parts. The reduction of ferric oxide by aluminium is highly exothermic and therefore the iron formed will be in the molten state. Thermite reaction involving aluminium is also called Goldschmidt alumino thermic reaction.
It is an exothermic reaction in which a large amount of heat is evolved. This reduction property of aluminium is used in thermite welding for joining the broken pieces of heavy iron objects like girders, railway tracks or cracked machine parts.
Answer:
Aluminothermic reactions are exothermic chemical reactions using aluminium as the reducing agent at high temperature. The process is industrially useful for production of alloys of iron.[1] The most prominent example is the thermite reaction between iron oxides and aluminium to produce iron itself:
Fe2O3 + 2 Al → 2 Fe + Al2O3