what is goldschmidt aluminothermic process?
IT IS PROCESS IN WHICH A mix of 3 parts or ferric oxide n 1 part of aluminium powder is taken in a crucible with hole at bottom n ignited using a ,mix of potasium chlorate n magnesium powder using a fuse of burning magnesium a vigorous reaction result in high temp n formation of molten iron n aluminium which drops down from hole so this process is used for welding broken iron girders or rails it is called thermite process because mix of ferric oxide n aluminium is called thermite