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Title: | Probing the chemistry of CdS paints in The Scream by in situ noninvasive spectroscopies and synchrotron radiation x-ray techniques |
Author: | Monico, Letizia Cartechini, Laura Rosi, Francesca Chieli, Annalisa Grazia, Chiara Meyer, Steven de Nuyts, Gert Vanmeert, Frederik Janssens, Koen Cotte, Marine Nolf, Wout de Falkenberg, Gerald Anca Sandu, Irina Cirina Storevik Tveit, Eva Mass, Jennifer Pereira de Freitas, Renato Romani, Aldo Miliani, Costanza |
Keywords: | Espectroscòpia Sulfats Cadmi Deterioració de materials Pintura sobre tela Spectrum analysis Sulfates Cadmium Deterioration of materials Textile painting |
Issue Date: | 15-May-2020 |
Publisher: | American Association for the Advancement of Science |
Abstract: | The degradation of cadmium sulfide (CdS)-based oil paints is a phenomenon potentially threatening the iconic painting The Scream (ca. 1910) by Edvard Munch (Munch Museum, Oslo) that is still poorly understood. Here, we provide evidence for the presence of cadmium sulfate and sulfites as alteration products of the original CdS-based paint and explore the external circumstances and internal factors causing this transformation. Macroscale in situ noninvasive spectroscopy studies of the painting in combination with synchrotron-radiation x-ray microspectroscopy investigations of a microsample and artificially aged mock-ups show that moisture and mobile chlorine compounds are key factors for promoting the oxidation of CdS, while light (photodegradation) plays a less important role. Furthermore, under exposure to humidity, parallel/secondary reactions involving dissolution, migration through the paint, and recrystallization of water-soluble phases of the paint are associated with the formation of cadmium sulfates. |
Note: | Reproducció del document publicat a: https://doi.org/10.1126/sciadv.aay3514 |
It is part of: | Science Advances, 2020, vol. 6, num. 20 |
URI: | http://hdl.handle.net/2445/196015 |
Related resource: | https://doi.org/10.1126/sciadv.aay3514 |
ISSN: | 2375-2548 |
Appears in Collections: | Articles publicats en revistes (Història i Arqueologia) |
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