Опубликована: Дек. 13, 2023

The peculiar physicochemical features of deep eutectic solvents (DESs), in particular their tunability, make them ideal media for various applications. Despite ability to solubilize metal oxides, use as rust removers from valuable substrates has not yet been thoroughly investigated. In this study we chosen three known DESs, consisting choline chloride and acetic, oxalic or citric acid evaluating remove corrosion products a cellulose-based material linen fabric two different lithotypes, travertine granite. artificial staining was achieved by placing rusty iron grid on surfaces. DESs were applied means cellulose poultice the fabrics, while rusted stone surfaces with cotton swab. Macro- microscopic observations, colorimetry SEM/EDS analysis employed ascertain cleaning effectiveness absence side effects samples after treatment. Oxalic acid-based DES capable removing stains both samples, chloride/citric effective only specimens. results suggest new practical application elimination lithic cellulosic precious artistic value.

Язык: Английский