Preparation, Identification and degradation of copper-based inorganic painting pigments

0375604 - ÚACH 2012 CZ eng D - Thesis
Švarcová, Silvie
Preparation, Identification and degradation of copper-based inorganic painting pigments.
2011
R&D Projects: GA ČR GA203/07/1324
Institutional research plan: CEZ:AV0Z40320502
Keywords : copper-based pigments * micro-analysis * works of art
Subject RIV: CA - Inorganic Chemistry

The work focused on various aspects of the use of copper pigments in different types of painted artworks by means of material investigation approach combining the non-invasive in situ techniques with subsequent micro-analytical laboratory techniques. Based on analyses of the extensive set of artworks (180 samples from 102 artworks), the material characteristics for the micro-analytical differentiation of particular copper pigments in paint layers were found and the suitable analytical methodology was set up. Materials characteristics (fingerprints) were found and described to distinguish between natural, artificial and corrosion-based origin of the copper pigments. Model experiments were carried out with respects to the composition of the real paint layers to reveal degradation phenomena affecting these pigments including moisture, salt solutions, oxalic acid, alkaline environment and binding media. Selected copper pigments were synthesised and characterised.
Permanent Link: http://hdl.handle.net/11104/0208211