Micro-spectroscopic study of late 19th-early 20th century tube paints
Language English Country England, Great Britain Media print-electronic
Document type Journal Article
PubMed
35640470
DOI
10.1016/j.saa.2022.121414
PII: S1386-1425(22)00563-7
Knihovny.cz E-resources
- Keywords
- Metal carboxylates, Micro-ATR-FTIR, Micro-Raman, Micro-XRPD, Pigments, Zinc stearate,
- MeSH
- X-Ray Diffraction MeSH
- Paintings * history MeSH
- Paint * history MeSH
- Spectrum Analysis, Raman methods MeSH
- Spectroscopy, Fourier Transform Infrared MeSH
- Publication type
- Journal Article MeSH
Many issues in the conservation of paintings from the early modern period are still unresolved due to lack of information on paints from the late 19th and early 20th centuries, in particular their production, formulations, and later degradation processes. The inconsistency of the names that paint manufacturers chose for their products furthermore compounds the challenges faced by conservators and chemists wishing to study them. This paper addresses a number of these issues through investigations of commercial tube oil paints from a paint box owned by the Norwegian painter Harriet Backer (1845-1932). Samples were analyzed using a multi-instrumental approach. Micro-attenuated total reflection Fourier transform infrared spectroscopy and micro-Raman spectroscopy - supported by micro-X-ray powder diffraction - allowed the identification of binders, pigments, and extenders. The data highlight the use of materials that were new at the time and not reported in the manufacturer's catalog. Furthermore, zinc stearate has been detected for the first time. Its detection and the absence of any zinc-based pigments confirms that zinc stearate was already used as dispersing agent in paint formulations at that time.
Department of Archaeology Conservation and History Postboks 1008 Blindern 0315 Oslo Norway
Department of Archaeology Conservation and History Storgata 2 0155 Oslo Norway
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