20272
Accession Number
27874
Author
McNeil, Michael B.;Mohr, D.W.
Editor
Vandiver, Pamela B.; Druzik, James R.; Wheeler, George Segan; Freestone, Ian C.
Author Affiliation
Nuclear Regulatory Commision. Office of Nuclear Regulatory Research;Naval Coastal Systems Center
Title Of Article Chaper
Sulfate formation during corrosion of copper alloy objects
Title Of Journal Book
Materials issues in art and archaeology III: symposium held 27 April-1 May 1992, San Francisco
Volume
267
Pages
1047-1053
Collation
1 fig., 2 tables
Reference Bibliography
24 refs.
Publisher
Materials Research Society
Publisher City
Pittsburgh
ISBN
1-55899-162-X
ISSN
0272-9172
Language Of Text
English
Language Of Summary
English
Literature Type
Monograph
Literature Level
Analytic
Meeting
Materials Research Society Symposium
Meeting City
San Francisco
Abstract
The copper sulfate minerals chalcanthite (CuSO<sub>4</sub>.5H<sub>2</sub>O), antlerite (Cu<sub>3</sub>SO<sub>4</sub>(OH)<sub>4</sub>), and brochantite (Cu<sub>4</sub>SO<sub>4</sub>(OH)<sub>6</sub>) are observed as corrosion products on copper alloy objects such as statues whic are exposed to weathering. The usual product in aqueous corrosion is Brochantite, though posnjakite (Cu<sub>4</sub>SO<sub>4</sub>(OH)<sub>6</sub>H<sub>2</sub></su b>O is also known. No copper sulfate mineral is commonly found in artifacts recovered from near-surface burial. These observations can be explained in terms of stability diagrams and microbiological activity. -- CAL
Keywords
sulfate;formation;corrosion;copper;alloy -- CAL
pub_id
20272
Meeting Date
19920427-19920501