[article] 
inStudies in conservation > Vol.70 N°7-8(2025; October-November) (2025-10-01) . - P. 612-619

Titre :	Orpiment on Seventeenth-Century Blue-Coloured Textblock Edges
Type de document :	texte imprimé
Auteurs :	Mitchel Gundrum (19..-....), Auteur
Année de publication :	2025
Article en page(s) :	P. 612-619
Langues :	Anglais (eng)
Catégories :	Arsenic -- Toxicologie Livres -- Allemagne -- 17e siècle -- Conservation et restauration Livres -- Pays-Bas -- 17e siècle -- Conservation et restauration Orpiment -- Toxicologie Pigments -- Toxicologie
Index. décimale :	7.025 Dommages. Conservation. Protection
Résumé :	Orpiment (arsenic trisulfide) was identified on blue textblock edges of six books with imprints dating between 1647–1712 from cities in Germany, Austria, and the Netherlands. This is theorized to be evidence of originally green edges coloured with vergaut, a mixture of indigo and orpiment, as suggested by elemental analysis and contemporary bookbinding manuals. While recent studies in bibliotoxicology have focused on red (vermilion), yellow (orpiment, lead chromate), and green (emerald green) binding features, this study suggests bibliographic and safety value in surveying potentially hazardous blue colourants on pre-industrial bookbindings.

[article] Orpiment on Seventeenth-Century Blue-Coloured Textblock Edges [texte imprimé] / Mitchel Gundrum (19..-....), Auteur . - 2025 . - P. 612-619.
Langues : Anglais (eng)
in Studies in conservation > Vol.70 N°7-8(2025; October-November) (2025-10-01) . - P. 612-619

Catégories :	Arsenic -- Toxicologie Livres -- Allemagne -- 17e siècle -- Conservation et restauration Livres -- Pays-Bas -- 17e siècle -- Conservation et restauration Orpiment -- Toxicologie Pigments -- Toxicologie
Index. décimale :	7.025 Dommages. Conservation. Protection
Résumé :	Orpiment (arsenic trisulfide) was identified on blue textblock edges of six books with imprints dating between 1647–1712 from cities in Germany, Austria, and the Netherlands. This is theorized to be evidence of originally green edges coloured with vergaut, a mixture of indigo and orpiment, as suggested by elemental analysis and contemporary bookbinding manuals. While recent studies in bibliotoxicology have focused on red (vermilion), yellow (orpiment, lead chromate), and green (emerald green) binding features, this study suggests bibliographic and safety value in surveying potentially hazardous blue colourants on pre-industrial bookbindings.