http://www.cnr.it/ontology/cnr/individuo/prodotto/ID48500
Bleaching of red lake paints in encaustic mummy portraits (Articolo in rivista)
- Type
- Label
- Bleaching of red lake paints in encaustic mummy portraits (Articolo in rivista) (literal)
- Anno
- 2010-01-01T00:00:00+01:00 (literal)
- Alternative label
Miliani, C.; Daveri, A.; Spaabaek, L.; Romani, A.; Manuali, V.; Sgamellotti, A.; Brunetti, B. G. (2010)
Bleaching of red lake paints in encaustic mummy portraits
(literal)
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- Miliani, C.; Daveri, A.; Spaabaek, L.; Romani, A.; Manuali, V.; Sgamellotti, A.; Brunetti, B. G. (literal)
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- Pagina fine
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- DOI: 10.1007/s00339-010-5748-3 (literal)
- Note
- ISI Web of Science (WOS) (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
- [Miliani, Costanza; Sgamellotti, Antonio; Brunetti, Brunetto Giovanni] Univ Perugia, Dipartimento Chim, Ist CNR Sci & Tecnol Mol, I-06100 Perugia, Italy.
[Daveri, Alessia; Romani, Aldo; Manuali, Valentina; Sgamellotti, Antonio; Brunetti, Brunetto Giovanni] Univ Perugia, Dipartimento Chim, Ctr SMAArt, I-06100 Perugia, Italy.
[Spaabaek, Lin] Ny Carlsberg Glyptotek, DK-1556 Copenhagen, Denmark. (literal)
- Titolo
- Bleaching of red lake paints in encaustic mummy portraits (literal)
- Abstract
- The present paper reports on the study of the development of whitish
opacity in pink paints in encaustic mummy portraits. Non-invasive
measurements carried out on two encaustic portraits belonging to the Ny
Carlsberg Glyptotek, Copenhagen, by reflectance FTIR and UV-vis
fluorescence have shown that the areas prone to the bleaching
phenomenon had been painted with melted beeswax and an anthraquinone
vegetal lake mixed with calcium sulphate hemihydrate and dihydrate. The
hypothesis that the bleaching disease was neither related to a
degradation of the dyes nor to an alteration of the wax but rather to a
dehydration-hydration reaction of the CaSO4-H2O system, has been
corroborated by the analyses of two microsamples from the bleached
areas and ascertained by accelerated ageing experiments on encaustic
models. (literal)
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