Lead-tin mirror formation from mixtures of red lead and tin sulphide

Edwards, H. G. M., Dixon, E. L., Scowen, I. J. and Perez, F. R. (2003) Lead-tin mirror formation from mixtures of red lead and tin sulphide. Spectrochimica Acta - Part A: Molecular and Biomolecular Spectroscopy, 59 (10). pp. 2291-2299. ISSN 1386-1425

Full content URL: http://dx.doi.org/10.1016/S1386-1425(03)00072-6

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Item Type:Article
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Mosaic gold, tin (IV) sulphide, is a yellow pigment which was known in antiquity but whose use was superseded by other more easily obtainable yellow pigments by the Renaissance. The identification of mosaic gold residues in a burnished golden mirror decoration on a XIIIth Century Spanish polychrome statue is important in that the first reference to the use of mosaic gold in the European literature dates from the XIVth Century, although the use of this material in China had been recorded some time before. In this paper, Raman spectroscopy, XRD and SEM are used in the analysis of the conditions required for the formation of golden mirrors using tin (IV) sulphide in admixture with dilead (II) lead (IV) tetroxide and mercury (II) sulphide. From these results, it is proposed that the major reactions are the reduction of Sn(IV) to Sn(0) with the accompanying oxidation of lead (II) oxide to lead (IV) oxide and the formation of lead (0) and lead (II) sulphide. From these results it was possible to explain the process of creation of the golden mirror from mosaic gold in the XIIIth Century. © 2003 Elsevier B.V. All rights reserved.

Additional Information:Georaman 2002, Fifth International Conference on Raman Spectroscopy Applied to the Earth Sciences Conference Code:63028
Keywords:Gold, Mirrors, Oxidation, Raman spectroscopy, Reduction, Scanning electron microscopy, Tin compounds, X ray diffraction analysis, Mirror formation, Lead, lead, lead tetraoxide, sulfide, tin, tin derivative, tin sulfide, article, atomic absorption spectrometry, chemistry, Raman spectrometry, X ray diffraction, Lead, Microscopy, Electron, Scanning, Spectrophotometry, Atomic, Spectrum Analysis, Raman, Sulfides, X-Ray Diffraction
Subjects:F Physical Sciences > F100 Chemistry
Divisions:College of Science > School of Chemistry
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ID Code:13055
Deposited On:04 Apr 2014 09:46

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