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Charring is a chemical process of incomplete combustion of a soil when subjected to heat. The resulting residue matter is called char. Coke and charcoal are produced this way. It often occurs to biological tissue (living or dead) and organic compounds like wood or thermosetting polymers.
By the action of heat, charring removes hydrogen and oxygen from the solid, so that char is composed primarily of carbon.
Charring is an important process in the combustion ignition of solid fuels and in smouldering.
Charring had a special meaning under the common law of England. Under that system, the crime of arson required charring of a dwelling—actual damage to the fiber of the material from which the structure was built—and not mere "scorching" or damage to the surface, or to surface coverings such as carpets and wallpaper.
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- This page was last modified on 21 November 2008, at 17:31.
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