0558089 - ÚACH 2023 RIV GB eng J - Článek v odborném periodiku
Garrappa, Silvia - Frøysaker, T. - Streeton, N. L. W. - Hradil, David - Platania, E. - Beltinger, K. - Caruso, F.
Micro-spectroscopic study of late 19th-early 20th century tube paints.
Spectrochimica Acta Part A-Molecular and Biomolecular Spectroscopy. Roč. 279, OCT (2022), č. článku 121414. ISSN 1386-1425. E-ISSN 1873-3557
Grant ostatní: AV ČR(CZ) StrategieAV21/6
Program: StrategieAV
Institucionální podpora: RVO:61388980
Klíčová slova: Metal carboxylates * Micro-ATR-FTIR * Micro-Raman * Micro-XRPD * Pigments * Zinc stearate
Obor OECD: Analytical chemistry
Impakt faktor: 4.4, rok: 2022 ; AIS: 0.512, rok: 2022
Způsob publikování: Omezený přístup
Web výsledku:
https://doi.org/10.1016/j.saa.2022.121414DOI: https://doi.org/10.1016/j.saa.2022.121414

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.
Trvalý link: http://hdl.handle.net/11104/0331889