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ERIC Number: EJ820888
Record Type: Journal
Publication Date: 2007-Dec
Pages: 4
Abstractor: As Provided
Reference Count: 53
ISBN: N/A
ISSN: ISSN-0021-9584
The Chemistry of Paper Preservation: Part 5. Permanent Paper
Carter, Henry A.
Journal of Chemical Education, v84 n12 p1937-1940 Dec 2007
The acid-catalyzed hydrolysis of cellulose accounts for the deterioration of paper in library books and other written records. To combat this threat to our written heritage, new permanent papers have been developed that are relatively chemically stable and undergo a very slow rate of deterioration. Many of these new papers are manufactured from mechanical pulps that contain large amounts of lignin, and are stable when a calcium carbonate buffer is present. Based on the performance involving accelerated aging of the papers, the inclusion of lignin has been accepted in the standards for permanent paper by Canada and Germany, providing that a calcium carbonate buffer is present. Other countries are still reluctant to make the change in standards to include lignin. Research needs to be done to define optical properties and their requirements for the standards. The applications of the chemistry of paper preservation to teaching are also discussed. (Contains 8 notes.) [For part 4 of this series please see The Chemistry of Paper Preservation Part 4. Alkaline Paper EJ543594.]
Division of Chemical Education of the American Chemical Society. Subscription Department, P.O. Box 1267, Bellmawr, NJ 08099-1267. Tel: 800-691-9846; Tel: 856-931-5825; Fax: 856-931-4115; e-mail: jchemed@egpp.com; Web site: http://www.jce.divched.org
Publication Type: Journal Articles; Reports - Descriptive
Education Level: Higher Education; Postsecondary Education
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A