NaOH Dechlorination Treatments for Bronze Conservation
Author Information
Author(s): Yang Xin, Wu Wei, Chen Kunlong
Primary Institution: University of Science and Technology Beijing
Hypothesis
Can NaOH effectively dechlorinate bronze artifacts to prevent corrosion?
Conclusion
The NaOH desalinization method effectively converts CuCl to Cu2(OH)3Cl, leading to an expansion of the rust layer.
Supporting Evidence
- The NaOH treatment converts CuCl into more stable products while achieving desalination.
- Electrochemical treatments significantly enhance the conversion of CuCl.
- Chloride ion concentration measurements indicate varying effectiveness based on solution concentration.
Takeaway
This study shows that using a special method with NaOH can help clean bronze artifacts by removing harmful chlorine.
Methodology
Samples were prepared using a powder pressing method and treated with NaOH solutions at varying concentrations and current densities to analyze dechlorination effectiveness.
Limitations
The study may not fully account for the complexities of real archaeological samples and their varied corrosion states.
Digital Object Identifier (DOI)
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