الزاج المسحوق والعفص

Egypt
14th Century
Source: Muhammad bin Abi al-Khair al-Hasani (known as Al-Araj), Zahr al-Basatin fi 'Ilm al-Mashatin.
Recipe Details

Ingredients

الزاج, العفص, الصمغ العربي

Preparation Steps

The recipe instructs to take crushed vitriol (Zaj) and galls (Afas) and form them into chickpea-sized balls using gum (p. 73). These are placed into a cup containing water. When wine or water is added, the chemical reaction between the iron vitriol and the tannins in the galls produces a black liquid resembling ink or blood (p. 73).

Original Recipe Text

The recipe instructs to take crushed vitriol (Zaj) and galls (Afas) and form them into chickpea-sized balls using gum (p. 73). These are placed into a cup containing water. When wine or water is added, the chemical reaction between the iron vitriol and the tannins in the galls produces a black liquid resembling ink or blood (p. 73).

Evidence

"خذ الزاج المسحوق والعفص (١) ، وتعمل منه الحمص بالصمغ كما ذكرت لك أولا ، وتلقيه في القدح ، فإنه يشعل كما ذكرت لك . فإذا قربت الشمعة إلى هذا الدواء أخذه وشعلها . وأما الذي يطفيها فهي حركة لطيفة طريقة العمل جدا . وذلك أنك تعمل خلف الشمعة طاقة في الحايط . وتجعل فيها عند رأس الطفاية بخشا صغيرا . وتجعل في الطاقة زقا"

Remarks

This entry is significant as it demonstrates the portable preparation of iron-gall ink components in 'pill' form for technical and performative applications. Footnote (1) on p. 73 explains that 'Zaj' refers to sulfur compounds like vitriol, while 'Afas' are the oak galls used for ink making.

Scientific Analysis
Chemical CompositionIron sulfates and gallotannins
Analytical Techniques
Documentary analysis
Certainty Level
Inferred
Instrumentally Verified
Not Verified
Metadata
Material Type
ink
Binderالصمغ
ColorBlack
RegionEgypt
Approx. Year1350
Source Information
AuthorMuhammad bin Abi al-Khair al-Hasani
CollectionUnknown
Language
N/A
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