some other colour which apparently attacked the heavy paper

Egypt
9th Century
Source: Sezgin, Fuat (2010). Science and Technology in Islam, Volume IV: Catalogue of the Collection of Instruments of the Institute for the History of Arabic and Islamic Sciences. Frankfurt am Main: Institut für Geschichte der Arabisch-Islamischen Wissenschaften.
Recipe Details

Evidence

"the vitreous body of the eye was painted in some other colour which apparently attacked the heavy paper, because it disintegrated in all illustrations exactly where it corresponds to the vitreous body."

Remarks

The specific pigment used for the vitreous body caused localized disintegration of the paper support in the 9th-century manuscript illustrations. This suggests an acidic or metal-gall based colorant that was more aggressive than the red and black water colors used elsewhere (p. 9).

Scientific Analysis
Certainty Level
Inferred
Instrumentally Verified
Not Verified
Metadata
Material Type
pigment
RegionEgypt
Approx. Year850
Source Information
TitleScience and Technology in Islam, Volume IV
AuthorSezgin, Fuat
CollectionCairo manuscript (Dār al-Kutub al-Qaumīya, ms. Taimūr, tibb 100)
Language
N/A
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