black iron ink (ferrous sulphate + gallic acid + tannins)
Spain
11th Century
Source: Restaurator 28: 76–106 © 2008 Saur, Munich etc.
Recipe Details
Ingredients
ferrous sulphate, gallic acid, tannins, gum arabic, earth
Preparation Steps
The ferrogallic type ink is described as combinations of ferrous sulphate, gallic acid and tannins (p. 97). Small quantities of earth could have been added to render the inks thicker and yield better coverage (p. 97).
Original Recipe Text
The ferrogallic type ink is described as combinations of ferrous sulphate, gallic acid and tannins (p. 97). Small quantities of earth could have been added to render the inks thicker and yield better coverage (p. 97).
Evidence
"In general, for the main body of the texts black ink was used... of the ferrogallic type (combinations of ferrous sulphate, gallic acid and tannins)."
Remarks
The study analysed black inks from Ms. 3, 15 and 20 (p. 97). The identification was part of a larger study on the Arabic manuscript collection of Sacromonte Abbey in Granada, spanning the 11th to 17th centuries (p. 104). The use of gum arabic as a binder was identified using infrared spectroscopy in all cases (p. 96).
Scientific Analysis
Analytical Techniques
Raman
DRX
SEM-EDX
Certainty Level
Confirmed
Instrumentally Verified
Verified
Metadata
Material Type
ink
BinderAcacia gum
ColorBlack
RegionSpain
Approx. Year1050
Source Information
AuthorRestaurator 28: 76–106 © 2008 Saur, Munich etc.
CollectionMs. 3, 15 and 20
Language
N/A
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