Sustainable and Beneficial: Pollutant Absorption and Relative Humidity Control in Display Cases by Saturated Salt Solutions.
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| Title: | Sustainable and Beneficial: Pollutant Absorption and Relative Humidity Control in Display Cases by Saturated Salt Solutions. |
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| Alternate Title: | Sostenible y Beneficioso: Absorción de Contaminantes y Control de la Humedad Relativa en Vitrinas Mediante Soluciones de Sales Saturadas. |
| Authors: | Eggert, Gerhard1 (AUTHOR) gerhard.eggert@abk-stuttgart.de, Brieger, Oliver2 (AUTHOR), Marschibois, My Sa2 (AUTHOR), Becker, Daniel2 (AUTHOR), Bur, Christian2 (AUTHOR), Siebel, Katja Franziska2,3 (AUTHOR), Grieb, Heiner3 (AUTHOR) |
| Source: | Studies in Conservation. 2024 Suppl 1, Vol. 69, p72-80. 9p. |
| Subject Terms: | *Solution (Chemistry), *Environmental engineering, *Gas detectors, Metal oxide semiconductors, Humidity control |
| Abstract (English): | In the light of sustainability, the nearly forgotten control of relative humidity (RH) in display cases with saturated salt solutions is re-evaluated. Spilling and creeping of salts can be avoided. By choosing magnesium nitrate or potassium carbonate, the temperature dependence of the RH and the emission of harmful gases are negligible. Measurements with metal oxide semiconductor (MOS) gas sensors showed such solutions to be excellent absorbers for corrosive pollutants such as acids and aldehydes, especially the alkaline potassium carbonate (hitherto not used in museums). The practical application of such solutions in display cases is currently being tested in a community science project in a number of museums. This will result in improved guidelines for conservators and it is hoped, in a revival of this passive, failsafe, low-carbon footprint technique. [ABSTRACT FROM AUTHOR] |
| Abstract (Spanish): | Desde el punto de vista de la sostenibilidad, se reevalúa el casi olvidado control de la humedad relativa (HR) en las vitrinas con soluciones salinas saturadas. Derrames y filtraciones de sales pueden ser evitados. Al elegir nitrato de magnesio o carbonato de potasio, la dependencia de la temperatura relativa de la HR y la emisión de gases nocivos son insignificantes. Las mediciones con sensores de gas semiconductores de óxido metálico (MOS) mostraron que estas soluciones son excelentes absorbentes de contaminantes corrosivos como ácidos y aldehídos, especialmente el carbonato de potasio alcalino (hasta ahora no utilizado en museos). La aplicación práctica de estas soluciones en vitrinas se está probando actualmente en un proyecto científico comunitario en varios museos. Esto dará como resultado pautas mejoradas para los conservadores y se espera que resucite esta técnica pasiva, que es a prueba de fallas y de baja huella de carbono. [ABSTRACT FROM AUTHOR] |
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| Database: | GreenFILE |
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| Abstract: | In the light of sustainability, the nearly forgotten control of relative humidity (RH) in display cases with saturated salt solutions is re-evaluated. Spilling and creeping of salts can be avoided. By choosing magnesium nitrate or potassium carbonate, the temperature dependence of the RH and the emission of harmful gases are negligible. Measurements with metal oxide semiconductor (MOS) gas sensors showed such solutions to be excellent absorbers for corrosive pollutants such as acids and aldehydes, especially the alkaline potassium carbonate (hitherto not used in museums). The practical application of such solutions in display cases is currently being tested in a community science project in a number of museums. This will result in improved guidelines for conservators and it is hoped, in a revival of this passive, failsafe, low-carbon footprint technique. [ABSTRACT FROM AUTHOR] |
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| ISSN: | 00393630 |
| DOI: | 10.1080/00393630.2024.2339727 |
