Publication: Diseño y evaluación de tratamientos tradicionales y novedosos para la eliminación de depósitos calcáreos en cerámica arqueológica
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2023-03-01
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Universidad Complutense de Madrid
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Abstract
Los depósitos calcáreos en cerámicas arqueológicas constituyen una de las principales alteraciones tanto en piezas de procedencia terrestre como subacuática. Los tratamientos utilizados para su eliminación han incluido un sinfín de productos químicos: desde ácidos fuertes, como el clorhídrico o el fluorhídrico, agentes quelantes como la sal tetrasódica del EDTA, el hexametafosfato sódico y, más recientemente, las resinas de intercambio iónico. Estos productos se han aplicado comúnmente por inmersión, debido a la sencillez del método así como a su eficacia. Aunque también se han puesto en práctica métodos indirectos, como papetas (pulpa de celulosa, arcillas, etc.) y medios espesados o geles físicos (agar-agar, gomaxantano, etc.)...
Calcareous deposits on archaeological ceramics constitute one of the main alterations in pieces of both terrestrial and underwater origin. The treatments used for their removal have included a myriad of chemical products: from strong acids, such as hydrochloric or hydrofluoric acid, chelating agents such as EDTA tetrasodium salt, sodium hexametaphosphate and, more recently, ion exchange resins. These products have been commonly applied by immersion, due to the simplicity of the method as well as its efficacy. However, indirect methods such as slurries (cellulose pulp, clays, etc.) and thickened media or physical gels (agaragar, xanthan gum, etc.) have also been implemented...
Calcareous deposits on archaeological ceramics constitute one of the main alterations in pieces of both terrestrial and underwater origin. The treatments used for their removal have included a myriad of chemical products: from strong acids, such as hydrochloric or hydrofluoric acid, chelating agents such as EDTA tetrasodium salt, sodium hexametaphosphate and, more recently, ion exchange resins. These products have been commonly applied by immersion, due to the simplicity of the method as well as its efficacy. However, indirect methods such as slurries (cellulose pulp, clays, etc.) and thickened media or physical gels (agaragar, xanthan gum, etc.) have also been implemented...
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Tesis inédita de la Universidad Complutense de Madrid, Facultad de Bellas Artes, leída el 14/12/2022