ferric gallate complex
Source: Oliver, Meredith, "From Lazarus To Theophilus: How Manuscript Digitization Led To The Historical, Chemical, and Technological Understanding of Iron Gall Ink and its Counterparts" (2015). Honors Theses. 700.
Recipe Details
Ingredients
tannin, metal salt, iron sulfate
Preparation Steps
Produced by the reaction between tannic acid (from oak galls) and ferrous sulfate (vitriol) (p. 13-16).
Original Recipe Text
Produced by the reaction between tannic acid (from oak galls) and ferrous sulfate (vitriol) (p. 13-16).
Evidence
"Complex formation occurs between the tannin and metal salt, ultimately producing a ferric gallate complex that gives iron gall ink its characteristic pigment."
Remarks
This complex is responsible for the black color and acidic properties of iron gall ink (p. 13, 20).
Scientific Analysis
Chemical Compositionferric gallate complex
Analytical Techniques
XRF
UV-Vis
Certainty Level
Confirmed
Instrumentally Verified
Verified
Metadata
Material Type
pigment
BinderAcacia gum
ColorBlack
Source Information
AuthorOliver, Meredith, "From Lazarus To Theophilus: How Manuscript Digitization Led To The Historical, Chemical, and Technological Understanding of Iron Gall Ink and its Counterparts"
CollectionSimulated ink samples
Language
N/A
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