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BY-NC-ND 3.0 license Open Access Published by De Gruyter Open Access May 15, 2014

Chemical and technological characterization of medieval glass bracelets from South-East Bulgaria

Ralitsa Georgieva, Albena Detcheva and Yanko Dimitriev
From the journal Open Chemistry

Abstract

The present paper deals with chemical and physicochemical characterization of seven glass fragments of medieval glass bracelets from South-East Bulgaria. Samples were investigated by Fourier-transform infrared spectroscopy (FT-IR), transmission electron microscopy (TEM) and differential thermal analysis (DTA). Gravimetric chemical analysis was used for silica assessment. Flame photometry was applied to determine sodium and potassium content while aluminium, calcium and magnesium were determined by flame atomic absorption spectrometry after dissolution using a mixture of acids. All investigated artefacts are soda-lime-silica glasses and when produced two different recipe norms were used. Important technological parameters of glass manufacturing were determined and discussed. This investigation throws light on the technological development and production of glass during medieval times.

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Published Online: 2014-5-15
Published in Print: 2014-11-1

© 2014 Versita Warsaw

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

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