Chemische Grundlagen, Formulierung und Stabilitätssteuerung moderner Eisengallustinten

This technical report provides a chemistry-based formulation and stability model for modern iron gall inks, with a focus on pH control, redox buffering, ligand chemistry, surfactants, and long-term oxidative behavior. The work combines systematic experimental development with a critical evaluation of coordination and redox chemistry literature and derives practical formulation guidelines for fountain-pen-compatible iron gall inks. The document is intended as a technical reference for practice and development. Full text in German. Versioned report.