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Original title:
Lead soaps in paintings: symptoms and the role of humidity
Authors: Garrappa, Silvia ; Švarcová, Silvie ; Kočí, Eva ; Hradilová, J. ; Bezdička, Petr ; Hradil, David
Document type: Papers
Conference/Event: Interdisciplinary ALMA Conference /7./, Bratislava (SK), 20191016
Year: 2020
Language: eng
Abstract: In this study, an overview of the symptoms of lead soaps reported in artworks in combination\nwith the study of the role of humidity on the formation of these degradation products have\nbeen thoroughly investigated. The use of optical microscopy, scanning electron microscopy\n(SEM) in combination with Fourier-transform infrared spectroscopy (FTIR) proved to be an\nefficient analytical approach to highlight both the saponified area of artworks’ samples and the\nformation of metal carboxylates within mock-up model systems. Optical microscopy revealed\nto be very useful for the first screening of samples embedded in resin, while SEM helped in\nthe detection and distribution of elements within the cross-sections. On the other hand, FTIR\nmicroscope proved to be a very powerful instrument for high-resolution point measurements\nperformed in the attenuated total reflection mode (ATR) mode with mercury-cadmium-telluride\n(MCT) detector, as well as for chemical imaging of larger area of both artworks’ and mock-up\nsamples performed in the ATR mode with focal plane arrays (FPA) detector. This study provides\nnew useful insights contributing to better understanding of factors affecting the paints‘ stability,\nwhich is neccesary for developing new efficient strategies for preservation and restoration of\nfatty-based painted artworks.
Keywords: egg yolk; humidity; lead soaps; oil; paintings
Project no.: StrategieAV21/6
Funding provider: AV ČR
Host item entry: ACTA ARTIS ACADEMICA 2020 : The Colour Theme, ISBN 978-80-88366-14-0
Institution: Institute of Inorganic Chemistry AS ČR (web)
Document availability information: Fulltext is available at the institute of the Academy of Sciences.
Original record: http://hdl.handle.net/11104/0320105
Permalink: http://www.nusl.cz/ntk/nusl-438867
The record appears in these collections:
Research > Institutes ASCR > Institute of Inorganic Chemistry
Conference materials > Papers
Authors: Garrappa, Silvia ; Švarcová, Silvie ; Kočí, Eva ; Hradilová, J. ; Bezdička, Petr ; Hradil, David
Document type: Papers
Conference/Event: Interdisciplinary ALMA Conference /7./, Bratislava (SK), 20191016
Year: 2020
Language: eng
Abstract: In this study, an overview of the symptoms of lead soaps reported in artworks in combination\nwith the study of the role of humidity on the formation of these degradation products have\nbeen thoroughly investigated. The use of optical microscopy, scanning electron microscopy\n(SEM) in combination with Fourier-transform infrared spectroscopy (FTIR) proved to be an\nefficient analytical approach to highlight both the saponified area of artworks’ samples and the\nformation of metal carboxylates within mock-up model systems. Optical microscopy revealed\nto be very useful for the first screening of samples embedded in resin, while SEM helped in\nthe detection and distribution of elements within the cross-sections. On the other hand, FTIR\nmicroscope proved to be a very powerful instrument for high-resolution point measurements\nperformed in the attenuated total reflection mode (ATR) mode with mercury-cadmium-telluride\n(MCT) detector, as well as for chemical imaging of larger area of both artworks’ and mock-up\nsamples performed in the ATR mode with focal plane arrays (FPA) detector. This study provides\nnew useful insights contributing to better understanding of factors affecting the paints‘ stability,\nwhich is neccesary for developing new efficient strategies for preservation and restoration of\nfatty-based painted artworks.
Keywords: egg yolk; humidity; lead soaps; oil; paintings
Project no.: StrategieAV21/6
Funding provider: AV ČR
Host item entry: ACTA ARTIS ACADEMICA 2020 : The Colour Theme, ISBN 978-80-88366-14-0
Institution: Institute of Inorganic Chemistry AS ČR (web)
Document availability information: Fulltext is available at the institute of the Academy of Sciences.
Original record: http://hdl.handle.net/11104/0320105
Permalink: http://www.nusl.cz/ntk/nusl-438867
The record appears in these collections:
Research > Institutes ASCR > Institute of Inorganic Chemistry
Conference materials > Papers
Record created 2021-05-30, last modified 2022-09-29