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The Effects of the Ammonia Neutralizing Treatment on Marine Archaeological Vasa Wood
Stockholm University, Faculty of Humanities, Department of Archaeology and Classical Studies, Archaeological Research Laboratory.
Western Australian Maritime Museum.
2010 (English)In: Studies in Conservation, ISSN 0039-3630, Vol. 55, no 1, 41-54 p.Article in journal (Refereed) Published
Abstract [en]

Laboratory experiments with ammonia vapour on Vasa wood have been carried out to neutralize the acidity connected to the numerous outbreaks of acidic sulfate salts occurring on the wooden surfaces of the Swedish historical shipwreck Vasa (1628). The effects of the ammonia treatment have been evaluated by means of pH measurements, Fourier transform infrared (FUR) spectroscopy and size exclusion chromatography (SEC). The SEC analyses did not show any apparent effect on the cellulose in the polyethylene glycol-treated Vasa wood sample, while the FTIR results indicate sonic degradation of the holocellulose.

Place, publisher, year, edition, pages
London: IIC; International Institute for Conservation of Historic and Artistic Works , 2010. Vol. 55, no 1, 41-54 p.
Keyword [en]
Vasa, marine archaeological wood, conservation, FTIR, ammonia, sulfur, iron
National Category
Archaeology Chemical Sciences
Research subject
Analytical Chemistry
URN: urn:nbn:se:su:diva-49236ISI: 000276621000005OAI: diva2:376750
FormasRiksbankens Jubileumsfond
authorCount :2Available from: 2011-01-17 Created: 2010-12-13 Last updated: 2011-01-17Bibliographically approved

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