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| '''Lignin''' is a group of ]s that is used in the ]s of ]s to create ]. | |||
| Lignin is formed by the irreversible removal of ] from ]s, creating ]s. Lignin ]s are cross-connected structures with a molecular weights on the order of 10,000 ]. | |||
| Lignin is the most abundant organic material on earth after ]. The strength of wood is a result of lignin, which makes up about one-quarter to one-third of the mass of dry wood. Lignin is removed from wood pulp before it is turned into ], and the extracted lignin is used as a binder in particleboard, adhesive for linoleum, and raw material for processing into chemicals (such as ] and ]). The type of lignin (such as lignosulfonates and kraft lignins) used in industry depends upon the method that was used to extract it. | |||
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Revision as of 00:46, 8 January 2004
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