Published 2010-06-11
Keywords
- thiourea,
- science,
- office,
- restoration,
- investigation
Copyright (c) 2010 Intervención, Revista Internacional de Conservación, Restauración y Museología

This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
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Abstract
The use of thiourea for the cleaning of silver cultural heritage has not been absolutely convenient. Apart from having a 0-pH, as a result from the presence of clorhidric acid, which affects the conservation of the constituent materials, the bibliography indicates that its residues cannot be completely eliminated, that it forms secondary by-products, and that it might cause superficial micro-fissures. Hence, this article critics its use, as an example of the application of materials, that by habit –without investigating its consequences, its mechanisms of action, its interactions, and its secondary by-products– have lead to serious mistakes in the intervention. It additionally analyses the profesional attitude that can place restoration as an art-craft: an activity that prioritizes manual skills and the application of formulas over the self-reflection and investigation. It concludes that a scientific thinking is indispensable for the discipline development.
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