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Ponce A, Brostoff LB, Gibbons SK, et al. Elucidation of the Fe(III) Gallate Structure in Historical Iron Gall Ink. Anal Chem. 2016;88(10):5152-8doi: 10.1021/acs.analchem.6b00088.
Ponce, A., Brostoff, L. B., Gibbons, S. K., Zavalij, P., Viragh, C., Hooper, J., Alnemrat, S., Gaskell, K. J., & Eichhorn, B. (2016). Elucidation of the Fe(III) Gallate Structure in Historical Iron Gall Ink. Analytical chemistry, 88(10), 5152-8. https://doi.org/10.1021/acs.analchem.6b00088
Ponce, Aldo, et al. "Elucidation of the Fe(III) Gallate Structure in Historical Iron Gall Ink." Analytical chemistry vol. 88,10 (2016): 5152-8. doi: https://doi.org/10.1021/acs.analchem.6b00088
Ponce A, Brostoff LB, Gibbons SK, Zavalij P, Viragh C, Hooper J, Alnemrat S, Gaskell KJ, Eichhorn B. Elucidation of the Fe(III) Gallate Structure in Historical Iron Gall Ink. Anal Chem. 2016 May 17;88(10):5152-8. doi: 10.1021/acs.analchem.6b00088. Epub 2016 Apr 25. PMID: 27058399.
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Anal Chem. 2016 May 17;88(10):5152-8. doi: 10.1021/acs.analchem.6b00088. Epub 2016 Apr 25.

Elucidation of the Fe(III) Gallate Structure in Historical Iron Gall Ink.

Analytical chemistry

Aldo Ponce, Lynn B Brostoff, Sarah K Gibbons, Peter Zavalij, Carol Viragh, Joseph Hooper, Sufian Alnemrat, Karen J Gaskell, Bryan Eichhorn

Affiliations

  1. Department of Chemistry and Biochemistry, University of Maryland , College Park, Maryland 20742, United States.
  2. Preservation Research and Testing Division, Library of Congress , 101 Independence Avenue SE, Washington, District of Columbia 20540, United States.
  3. Vitreous State Laboratory (VSL), The Catholic University of America , 400 Hannan Hall, 620 Michigan Avenue NE, Washington, District of Columbia 20064, United States.
  4. Department of Physics, Naval Postgraduate School at Monterey , Monterey, California 93943, United States.

PMID: 27058399 DOI: 10.1021/acs.analchem.6b00088

Abstract

Synthetic, structural, spectroscopic and aging studies conclusively show that the main colorant of historical iron gall ink (IGI) is an amorphous form of Fe(III) gallate·xH2O (x = ∼1.5-3.2). Comparisons between experimental samples and historical documents, including an 18th century hand-written manuscript by George Washington, by IR and Raman spectroscopy, XRD, X-ray photoelectron spectroscopy, and Mössbauer spectroscopy confirm the relationship between the model and authentic samples. These studies settle controversy in the cultural heritage field, where an alternative structure for Fe(III) gallate has been commonly cited.

Publication Types

Grant support