Acid migration

Description

The movement of acidic ions from one material or region to another. Acid migration may occur via contact as well as vapor transfer. For example, an acidic mat board in contact with a previously nonacidic paper may transfer ions, resulting in mat burn. Additionally, some materials may emit volatile Acid gases (pollutants) that can react with nearby objects.

Synonyms and Related Terms

acid transfer

Collection Risks

Acid migration may cause object to deteriorate or weaken over time.

Resources and Citations

• Matt Roberts, Don Etherington, Bookbinding and the Conservation of Books: a Dictionary of Descriptive Terminology, U.S. Government Printing Office, Washington DC, 1982
• A Glossary of Paper Conservation Terms, Margaret Ellis (ed.), Conservation Center of the Institute of Fine Arts, New York City, 1998
• Website: http://amol.org.au/recollections/7/a/htm
• Website: http://www.archivalsuppliers.com/glossary.html
• CCAHA Preservation Glossary