Analytical investigation and electrochemical conservation treatment for archaeological copper alloy artifacts from Jordan


  • Ahmad Abu-Baker Department of Conservation and Management of Cultural Resources, Faculty of Archaeology and Anthropology, Yarmouk University, P.O. Box 566, Irbid 21163, Jordan



Copper alloy, Silver alloy, Archaeological artifacts, Corrosion, Examination, Conservation treatment


This study presents an analytical investigation and electrochemical conservation treatment for a group of four copper alloy artifacts excavated from the archaeological cemetery that was located on the site of the Queen Alia International Airport, Jordan. The chemical analyses of internal alloys showed that a bracelet and a spatula were made of a quaternary copper–zinc–tin–lead alloy, a bracelet was made of a copper–silver–zinc alloy, and a spatula was made of a copper–tin, a bronze alloy. The corrosion products analyses indicated the presence oxides, carbonates and chlorides of copper, in addition to silver chlorides for the copper–silver–zinc alloy bracelet. The metallographic examination showed various degrees of working and heat treatment in the manufacturing process of the artifacts. The potentiostatic reduction technique was effective in reducing the corrosion products on the artifacts, which were finally coated with Paraloid B–72 to prevent corrosion reoccurrence.


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Before the stabilization treatment a twisted–strands bracele




How to Cite

Abu-Baker, A. (2023). Analytical investigation and electrochemical conservation treatment for archaeological copper alloy artifacts from Jordan. Conservar Património, 42, 38–55.