Difference between revisions of "Chlorine number"
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== Description == | == Description == | ||
| − | An indicator of [http://cameo.mfa.org/materials/fullrecord.asp?name=bleaching | + | An indicator of [http://cameo.mfa.org/materials/fullrecord.asp?name=bleaching%20agent bleach] consumption. Chlorine number is defined as the number of grams of [http://cameo.mfa.org/materials/fullrecord.asp?name=chlorine chlorine] or [http://cameo.mfa.org/materials/fullrecord.asp?name=bleaching%20powder bleaching powder] absorbed by 100 grams of dry [http://cameo.mfa.org/materials/fullrecord.asp?name=cellulose cellulose] pulp usually in a 15 minute time frame at room temperature. A high chlorine number indicates that the pulp has a high [http://cameo.mfa.org/materials/fullrecord.asp?name=lignin lignin] content. |
== Synonyms and Related Terms == | == Synonyms and Related Terms == | ||
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== Authority == | == Authority == | ||
| − | * | + | * Richard S. Lewis, ''Hawley's Condensed Chemical Dictionary'', Van Nostrand Reinhold, New York, 10th ed., 1993 |
| − | * | + | * Matt Roberts, Don Etherington, ''Bookbinding and the Conservation of Books: a Dictionary of Descriptive Terminology'', U.S. Government Printing Office, Washington DC, 1982 |
* ''The Dictionary of Paper'', American Paper Institute, New York, Fourth Edition, 1980 | * ''The Dictionary of Paper'', American Paper Institute, New York, Fourth Edition, 1980 | ||
Revision as of 07:54, 24 July 2013
Description
An indicator of bleach consumption. Chlorine number is defined as the number of grams of chlorine or bleaching powder absorbed by 100 grams of dry cellulose pulp usually in a 15 minute time frame at room temperature. A high chlorine number indicates that the pulp has a high lignin content.
Synonyms and Related Terms
Chlorzahl (Deut.)
Authority
- Richard S. Lewis, Hawley's Condensed Chemical Dictionary, Van Nostrand Reinhold, New York, 10th ed., 1993
- Matt Roberts, Don Etherington, Bookbinding and the Conservation of Books: a Dictionary of Descriptive Terminology, U.S. Government Printing Office, Washington DC, 1982
- The Dictionary of Paper, American Paper Institute, New York, Fourth Edition, 1980