A classic exothermic metal displacement reaction
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Welcome to Oberoi Thermit Pvt. Ltd.
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Indian Railways, one of the largest railways in
the world has come a long way in terms of
development, and even today it is a very fast
improving organization. The backbone of every
railway organization is it’s track, and the comfort
and safety provided by the track depends largely
on the Thermit weld.
Thermit welding provides a fast and economical
method of joining the rails at site. It enables high
speeds, more safety and longer life of rails and
the rolling stock. It also improves the quality of
the weld joint due to a reduced Heat Affected
Zone (HAZ).
http://www.oberoithermit.com/images/thermit1.jpg
Zu übersetzendes
Konrad
http://www.uni-bayreuth.de/departments/ddchemie/umat/eisen/images/thermit.jpg
GERMAN MEDIA
Click here
Thermit reaction
http://www2.uni-siegen.de/~pci/versuche/english/v44-13.html
Aluminium + Iron(111) oxide ---->Aluminium oxide + Iron
Due to very high temperatures (up to 2400°C,
reaction enthalpy: 852 kJ/mol) the reaction of iron
oxide with aluminium forms elemental iron, which
seeps in liquid form out of the flower pot drainage
hole:
http://www.science.uwaterloo.ca/~cchieh/cact/c120/heatreac.html
Useful link although it doesn't define statements correctly
and cannot spell phosphorus
Associated maths
If you want to use 10g of Al, what mass of iron oxide is required
What mass of iron will form
How much heat is released