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Vivianite: A historic blue pigment and its degradation under scrutiny
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SYSNO ASEP 0441806 Document Type C - Proceedings Paper (int. conf.) R&D Document Type Conference Paper Title Vivianite: A historic blue pigment and its degradation under scrutiny Author(s) Čermáková, Zdeňka (UACH-T) SAI
Švarcová, Silvie (UACH-T) SAI, RID, ORCID
Hradil, David (UACH-T) RID, SAI
Bauerová, P. (CZ)
Hradilová, J. (CZ)
Bezdička, Petr (UACH-T) SAI, RID, ORCIDSource Title Science and technology for the conservation of cultural heritage. - Boca Raton, Florida : CRC Press, 2013 - ISBN 978-1-138-00009-4 Pages s. 75-78 Number of pages 4 s. Publication form Print - P Action International Congress on Science and technology for the conservation of cultural heritage Event date 02.10.2012-05.10.2012 VEvent location Santiago de Compostela Country ES - Spain Event type EUR Language eng - English Country US - United States Keywords vivianite ; degradation ; micro-FTIR ; micro-ATR ; SEM-EDS Subject RIV AL - Art, Architecture, Cultural Heritage Institutional support UACH-T - RVO:61388980 UT WOS 000338265800019 DOI https://doi.org/10.1201/b15577-19 Annotation Vivianite is a mineral that was used as a blue painting pigment. However, in several artworks, vivianite has degraded to grey or yellowish colour. Our study confirmed the following degradation series caused by oxidation: vivianite-metavivianite-Fe3+ analogue of metavivianite-santabarbaraite. A procedure of identification of vivianite or its degradation products in microsamples of painted artworks was suggested (SEM-EDS followed by mu-ATR mu-FTIR). Vivianite was synthesized by an optimized method and model samples with water and linseed stand oil were created. These were subjected to artificial ageing in a climate chamber by intense UV light; these experiments are on-going. Workplace Institute of Inorganic Chemistry Contact Jana Kroneislová, krone@iic.cas.cz, Tel.: 311 236 931 Year of Publishing 2015
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