Difference between revisions of "Rice husk"
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== Description == | == Description == | ||
| − | The outer seed covering from rice grains, a cereal obtained from genus ''Oryza sativa''. Rice husks are separated from the seed during milling. When burnt, the husks can yield an [http://cameo.mfa.org/materials/fullrecord.asp?name=ash | + | The outer seed covering from rice grains, a cereal obtained from genus ''Oryza sativa''. Rice husks are separated from the seed during milling. When burnt, the husks can yield an [http://cameo.mfa.org/materials/fullrecord.asp?name=ash%20%28residue%29 ash] which is greater than 95% [http://cameo.mfa.org/materials/fullrecord.asp?name=silica silica]. Rice husk ash has been used as a [http://cameo.mfa.org/materials/fullrecord.asp?name=filler filler], an [http://cameo.mfa.org/materials/fullrecord.asp?name=abrasive abrasive], and as a [http://cameo.mfa.org/materials/fullrecord.asp?name=refractory%20material refractory material]. |
== Comparisons == | == Comparisons == | ||
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== Authority == | == Authority == | ||
| − | * | + | * Robert Fournier, ''Illustrated Dictionary of Practical Pottery'', Chilton Book Company, Radnor, PA, 1992 |
* ''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 | ||
| − | * | + | * 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 07:33, 24 July 2013
Description
The outer seed covering from rice grains, a cereal obtained from genus Oryza sativa. Rice husks are separated from the seed during milling. When burnt, the husks can yield an ash which is greater than 95% silica. Rice husk ash has been used as a filler, an abrasive, and as a refractory material.
Comparisons
Properties of Common Abrasives
Authority
- Robert Fournier, Illustrated Dictionary of Practical Pottery, Chilton Book Company, Radnor, PA, 1992
- Van Nostrand's Scientific Encyclopedia, Douglas M. Considine (ed.), Van Nostrand Reinhold, New York, 1976
- 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