Title:
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Identification of reaction compounds in micrometric layers from gothic paintings using combined SR-XRD and SR-FTIR
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Author:
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Salvadó Cabré, Nativitat; Buti Papiol, Salvador; Nicholson, J; Emerich, H; Labrador, A; Pradell Cara, Trinitat
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Other authors:
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Universitat Politècnica de Catalunya. Departament d'Enginyeria Química; Universitat Politècnica de Catalunya. Departament de Física i Enginyeria Nuclear; Universitat Politècnica de Catalunya. AMPC - Anàlisi de materials de Patrimoni Cultural; Universitat Politècnica de Catalunya. GCM - Grup de Caracterització de Materials |
Abstract:
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Synchrotron radiation X-ray diffraction ( -SR-XRD) and Fourier transform infrared spectroscopy ( -SRFTIR)
are used in the non-destructive identification of reaction and aging compounds from micrometric
ancient painting layers. The combination of the micrometer size and non-destructive nature of the techniques
together with the high resolution and brilliance of the synchrotron radiation has proved to be a
procedure most advantageous for the study of reaction, aging and degradation processes. Copper, lead
and calcium carboxylates and oxalates are determined in the chromatic, preparation and alteration layers
from 15th century egg tempera and oil paintings. Their nature and crystallinity have been assessed. Some
hypothesis about the mechanisms of development of both carboxylates and oxalates are presented. |
Subject(s):
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-Àrees temàtiques de la UPC::Enginyeria química::Química orgànica -Synchrotron radiation -Chemistry, Organic -Painting, Renaissance -- Analysis -Fourier transform infrared spectroscopy -Synchrotron radiation -XRD -FTIR -Metal carboxylates -Oxalates -Gothic paintings -Artwork -Pintura del Renaixement -Química orgànica -Espectroscòpia infraroja de transformació de Fourier -Sincrotrons |
Rights:
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Document type:
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Article - Published version Article |
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