The corrosion of ancient paper documents induced by iron gall inks has been analysed by means of non-destructive Fourier Transform Infrared Spectroscopy (FTIR) in order to identify the organic components of the degradation. In this first step of the research, the FTIR spectra have been classified on the basis of their absorbance in the 1730-1600, 1360-1250 and 890-702 cm-1 regions (mainly due to oxalates) and the 1200-900 cm-1 region (due to sulphates). At least 5 classes of degraded inks have been identified on the basis of some minor spectral features. This preliminary classification will be useful for the further steps of the research, aimed to identify the main products of degradation of iron- gall inks and to simulate their degradation with accelerated ageing techniques for a better set up of conservation and restoration procedures.

FTIR analysis of historic documents degraded by iron-gall inks

GORASSINI, Andrea;
2007-01-01

Abstract

The corrosion of ancient paper documents induced by iron gall inks has been analysed by means of non-destructive Fourier Transform Infrared Spectroscopy (FTIR) in order to identify the organic components of the degradation. In this first step of the research, the FTIR spectra have been classified on the basis of their absorbance in the 1730-1600, 1360-1250 and 890-702 cm-1 regions (mainly due to oxalates) and the 1200-900 cm-1 region (due to sulphates). At least 5 classes of degraded inks have been identified on the basis of some minor spectral features. This preliminary classification will be useful for the further steps of the research, aimed to identify the main products of degradation of iron- gall inks and to simulate their degradation with accelerated ageing techniques for a better set up of conservation and restoration procedures.
2007
9788855529396
File in questo prodotto:
File Dimensione Formato  
comunicazione PISA AIAr 2006 Calvini-Gorassini.pdf

non disponibili

Tipologia: Altro materiale allegato
Licenza: Non pubblico
Dimensione 492.89 kB
Formato Adobe PDF
492.89 kB Adobe PDF   Visualizza/Apri   Richiedi una copia
Pisa AIAr 2006 Sessione B8 - Analisi FTIR.pdf

non disponibili

Tipologia: Altro materiale allegato
Licenza: Non pubblico
Dimensione 73.28 kB
Formato Adobe PDF
73.28 kB Adobe PDF   Visualizza/Apri   Richiedi una copia

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11390/691470
 Attenzione

Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo

Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus ND
  • ???jsp.display-item.citation.isi??? ND
social impact