Citric Acid and EDTA use in the cleaning of pictorical structures

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José Manuel Barros Garcia
Universitat Politècnica de València, Instituto Universitario de Restauración del Patrimonio, Departamento de Conservación y Restauración
https://orcid.org/0000-0002-4642-6264
Sheila Llano Torre
Marina Rodríguez Serrano

Abstract

Citric Acid and EDTA are two chemical agents which are becoming indispensable tools inthe cleaning of pictorial structures. Undoubtedly, they allow professionals to solve verycomplex problems while raising doubts as to the possible negative effects on the originalpainting. In comparison with organic solvents, there still exists little information about theprotocols to be followed in designing cleaning systems with chelating agents.

Keywords: Cleaning, EDTA, Citric acid, Painting, Chelating agents

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