Difference between revisions of "Chitin"
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A tough, protective natural substance composed of a [http://cameo.mfa.org/materials/fullrecord.asp?name=nitrogen nitrogen] containing [http://cameo.mfa.org/materials/fullrecord.asp?name=polysaccharide polysaccharide]. Chitin is the principal component in [http://cameo.mfa.org/materials/fullrecord.asp?name=seashell seashells] as well as the exoskeletons of crabs, lobsters, insects, and [http://cameo.mfa.org/materials/fullrecord.asp?name=dermestid beetles]. It is also found in the cell walls of some [http://cameo.mfa.org/materials/fullrecord.asp?name=fungus fungi], [http://cameo.mfa.org/materials/fullrecord.asp?name=algae algae], and [http://cameo.mfa.org/materials/fullrecord.asp?name=yeast yeasts]. Chitin is inelastic, thus growing arthropods must shed their exoskeletons periodically. | A tough, protective natural substance composed of a [http://cameo.mfa.org/materials/fullrecord.asp?name=nitrogen nitrogen] containing [http://cameo.mfa.org/materials/fullrecord.asp?name=polysaccharide polysaccharide]. Chitin is the principal component in [http://cameo.mfa.org/materials/fullrecord.asp?name=seashell seashells] as well as the exoskeletons of crabs, lobsters, insects, and [http://cameo.mfa.org/materials/fullrecord.asp?name=dermestid beetles]. It is also found in the cell walls of some [http://cameo.mfa.org/materials/fullrecord.asp?name=fungus fungi], [http://cameo.mfa.org/materials/fullrecord.asp?name=algae algae], and [http://cameo.mfa.org/materials/fullrecord.asp?name=yeast yeasts]. Chitin is inelastic, thus growing arthropods must shed their exoskeletons periodically. | ||
| − | [[File: | + | [[File:Chitinkes.jpg|thumb|Chitin]] |
== Synonyms and Related Terms == | == Synonyms and Related Terms == | ||
kitin (Dan.); Chitin (Deut.); quitina (Esp., Port.); chitine (Fr., Ned.); chitina (It.); chityna (Pol.) | kitin (Dan.); Chitin (Deut.); quitina (Esp., Port.); chitine (Fr., Ned.); chitina (It.); chityna (Pol.) | ||
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| + | [[[SliderGallery rightalign|Chitin, Fly exoskeleton.jpg~FTIR]]] | ||
== Other Properties == | == Other Properties == | ||
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Sigma Chemical: [http://siri.org/msds/f2/cfg/cfgqt.html MSDS] | Sigma Chemical: [http://siri.org/msds/f2/cfg/cfgqt.html MSDS] | ||
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== Authority == | == Authority == | ||
| − | * | + | * Richard S. Lewis, ''Hawley's Condensed Chemical Dictionary'', Van Nostrand Reinhold, New York, 10th ed., 1993 |
| − | * | + | * Walter C. McCrone, John Gustave Delly, ''The Particle Atlas'', W. McCrone Associates, Chicago, IV, 1972 |
* ''Van Nostrand's Scientific Encyclopedia'', Douglas M. Considine (ed.), Van Nostrand Reinhold, New York, 1976 | * ''Van Nostrand's Scientific Encyclopedia'', Douglas M. Considine (ed.), Van Nostrand Reinhold, New York, 1976 | ||
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* Wikipedia, the free encyclopedia, at http://www.wikipedia.com Comment: http://en.wikipedia.org/wiki/Chitin (accessed (Sept. 2, 2005) | * Wikipedia, the free encyclopedia, at http://www.wikipedia.com Comment: http://en.wikipedia.org/wiki/Chitin (accessed (Sept. 2, 2005) | ||
| − | * | + | * Random House, ''Webster's Encyclopedic Unabridged Dictionary of the English Language'', Grammercy Book, New York, 1997 |
* ''The American Heritage Dictionary'' or ''Encarta'', via Microsoft Bookshelf 98, Microsoft Corp., 1998 | * ''The American Heritage Dictionary'' or ''Encarta'', via Microsoft Bookshelf 98, Microsoft Corp., 1998 | ||
Revision as of 07:27, 24 July 2013
Description
A tough, protective natural substance composed of a nitrogen containing polysaccharide. Chitin is the principal component in seashells as well as the exoskeletons of crabs, lobsters, insects, and beetles. It is also found in the cell walls of some fungi, algae, and yeasts. Chitin is inelastic, thus growing arthropods must shed their exoskeletons periodically.
Synonyms and Related Terms
kitin (Dan.); Chitin (Deut.); quitina (Esp., Port.); chitine (Fr., Ned.); chitina (It.); chityna (Pol.)
Other Properties
Soluble in concentrated mineral acids. Insoluble in common solvents.
| Composition | (C8H13NO5)n |
|---|---|
| CAS | 1398-61-4 |
Hazards and Safety
Sigma Chemical: MSDS
Authority
- Richard S. Lewis, Hawley's Condensed Chemical Dictionary, Van Nostrand Reinhold, New York, 10th ed., 1993
- Walter C. McCrone, John Gustave Delly, The Particle Atlas, W. McCrone Associates, Chicago, IV, 1972
- Van Nostrand's Scientific Encyclopedia, Douglas M. Considine (ed.), Van Nostrand Reinhold, New York, 1976
- The Merck Index, Martha Windholz (ed.), Merck Research Labs, Rahway NJ, 10th edition, 1983 Comment: entry 2105
- Wikipedia, the free encyclopedia, at http://www.wikipedia.com Comment: http://en.wikipedia.org/wiki/Chitin (accessed (Sept. 2, 2005)
- Random House, Webster's Encyclopedic Unabridged Dictionary of the English Language, Grammercy Book, New York, 1997
- The American Heritage Dictionary or Encarta, via Microsoft Bookshelf 98, Microsoft Corp., 1998
- Art and Architecture Thesaurus Online, http://www.getty.edu/research/tools/vocabulary/aat/, J. Paul Getty Trust, Los Angeles, 2000