Statements (29)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
gptkb:nun
|
| gptkbp:cause |
ink corrosion
paper degradation |
| gptkbp:color |
black
dark blue-black |
| https://www.w3.org/2000/01/rdf-schema#label |
Iron gall ink
|
| gptkbp:isSolubleIn |
gptkb:beer
gptkb:water |
| gptkbp:mainIngredient |
gptkb:gum_arabic
iron salts tannic acids |
| gptkbp:notableFor |
permanence
archival quality |
| gptkbp:preservationConcern |
archival conservation
|
| gptkbp:replacedBy |
aniline dye inks
modern fountain pen inks |
| gptkbp:riskFactor |
can damage paper over time
corrosive to metal pen nibs |
| gptkbp:usedBy |
gptkb:artist
scribes calligraphers |
| gptkbp:usedFor |
writing
drawing |
| gptkbp:usedIn |
gptkb:historical_documents
artworks medieval manuscripts |
| gptkbp:usedUntil |
5th century AD
|
| gptkbp:bfsParent |
gptkb:nun
|
| gptkbp:bfsLayer |
4
|