Number of the records: 1
Vivianite: A historic blue pigment and its degradation under scrutiny
- 1.0441806 - ÚACH 2015 RIV US eng C - Conference Paper (international conference)
Čermáková, Zdeňka - Švarcová, Silvie - Hradil, David - Bauerová, P. - Hradilová, J. - Bezdička, Petr
Vivianite: A historic blue pigment and its degradation under scrutiny.
Science and technology for the conservation of cultural heritage. Boca Raton, Florida: CRC Press, 2013, s. 75-78. ISBN 978-1-138-00009-4.
[International Congress on Science and technology for the conservation of cultural heritage. Santiago de Compostela (ES), 02.10.2012-05.10.2012]
Institutional support: RVO:61388980
Keywords : vivianite * degradation * micro-FTIR * micro-ATR * SEM-EDS
Subject RIV: AL - Art, Architecture, Cultural Heritage
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.
Permanent Link: http://hdl.handle.net/11104/0244782
Number of the records: 1