CBSE Class 10 Answered
What is alumino-thermic reduction?
Asked by | 19 Mar, 2008, 04:45: PM
Expert Answer
it is a process to weld broken piecec of iron rails girders etc it is also called thermit or gokdschmidt's reaction .
a mix of 3 parts of iron oxide n 1 part of Al powder called thermit i staken in a crucible with a hole at base . this cricible is placed over broken part n thermot is ignited by mix of KClO3 n Mg using a fuse of burning Mg
vigrous reac occur n temp of3000 C is acieved molte iron from ironoxide n Al drops over broken gap n fills it
Answered by | 21 Dec, 2017, 12:44: PM
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