Acta Chimica Slovaca (ACS) publishes papers on fundamental and applied aspects of chemistry, biochemistry, chemical technology, chemical engineering and process control, biotechnology and food technology. Welcome are also topics which include chemical aspects of materials, physical chemistry and chemical physics, analytical chemistry, macromolecular chemistry and biomedical engineering.

Influence of antioxidant and neutralization on stability of historical document models with iron-gall inks

Bohuslava Havlínová *, Viera Jančovičová, Hana Paulusová a, Michal Ďurovič b

Institute of Polymer Materials, Faculty of Chemical and Food Technology, STU, Radlinského 9, 812 37 Bratislava, Slovak Republic
a National Archive in Prague, Archivní 4, 149 01 Prague 4, Czech Republic
b National Archive in Prague, Archivní 4, 149 01 Prague 4, Czech Republic

E-mail: *

Abstract: This work is concerned with retardation of the degradation of historical documents written in iron-gall ink. The main objective was to examine the effect of MMMC (methoxy magnesium methyl carbonate) neutralization agent on the stability of the paper substrate during accelerated ageing. Changes were monitored in the mechanical, chemical and optical properties of the paper caused by accelerated ageing by dry hot air (at 105°C) and wet hot air (at 80°C and 50% RH). Whatman paper substrate was modified with gelatine combined with aluminium sulphate. The effect of the deacidification agent used, MMMC, and of the antioxidant BHT on the inked paper substrate was determined on the basis of the results of the individual measurements.

Keywords: ageing, antioxidants, deacidification

Full paper in Portable Document Format: acs_0072.pdf

Acta Chimica Slovaca, Vol. 3, No. 2, 2010, pp. 93—109