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Vivianite: A historic blue pigment and its degradation under scrutiny

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, ORCID}
Source 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	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

Number of the records: 1