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2022 | Book

Copper-Organic Complexes in Cultural Heritage Read chapter Read first chapter

Beyond Copper Soaps

Characterization of Copper Corrosion Containing Organics

Author: Luciana da Costa Carvalho

Publisher: Springer International Publishing

Book Series : SpringerBriefs in Applied Sciences and Technology

Part of: Springer Professional "Wirtschaft+Technik" , Springer Professional "Technik"

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About this book

This book reports a series of electrochemical experiments where copper was corroded in the presence of various organic substances. Combining data from spectroscopy techniques, X-ray diffraction and mass spectrometry (including proteomics) the experiments demonstrate that copper-organic complexes can be formed during the corrosion of copper. The low solubility of copper-organic complexes in organic solvents and their amorphous nature mean that these compounds cannot be easily detected by one single analytical technique. This book benefits researchers investigating the presence of organic residues in archaeological copper corrosion and copper-organic complexes in art, where sampling is often subject to curatorial constraints.

Table of Contents

Frontmatter
1. Copper-Organic Complexes in Cultural Heritage
Abstract
Copper exists in nature mainly combined with other elements as mineral deposits. It reacts spontaneously with organic compounds to form copper-organic complexes. In painted surfaces, copper-organic complexes have been identified as synthetic pigments and from interactions between mineral pigments and the paint media. These compounds are also involved in the preservation of textile fibres in archaeological metal objects. Metal conservators exploit the stability of copper-organic complexes as corrosion inhibitors.  
Luciana da Costa Carvalho
2. Corroding Copper in the Laboratory
Abstract
This chapter reports the results from electrochemistry experiments where copper coupons were corroded in electrolytes of different compositions. They illustrate that corrosion products can contain more than inorganic compounds when organic substances are present. 
Luciana da Costa Carvalho
3. Copper-Organic Complexes Synthetized Electrochemically
Abstract
This chapter presents the residues obtained from corroding copper in palmitic acid, stearic acid, oleic acid, linoleic acid, lactose and casein. They were characterised by a multi-analytical protocol comprised of Fourier Transform infrared, Raman spectroscopy, X-ray diffraction, X-ray photoelectron spectroscopy, and mass spectrometry.
Luciana da Costa Carvalho
4. Characterization of “Cu-Milk Corrosion”
Abstract
This chapter presents a residue produced from corroding copper in bovine milk. The Cu-Milk corrosion was analysed by a multi-analytical protocol and in relation to the copper-organic complexes presented in the previous chapter.
Luciana da Costa Carvalho
5. Conclusion
Luciana da Costa Carvalho
6. Analytical Techniques
Luciana da Costa Carvalho
Backmatter
Metadata
Title
Beyond Copper Soaps
Author
Luciana da Costa Carvalho
Copyright Year
2022
Electronic ISBN
978-3-030-97892-1
Print ISBN
978-3-030-97891-4
DOI
https://doi.org/10.1007/978-3-030-97892-1

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