Different low-cost materials to prevent the alteration induced by formic acid on unstable glasses

Abstract The most frequent cause of glass degradation is environmental moisture, which is adsorbed on its surface forming a hydration layer that induces the rupture of the glass network. This pathology is accelerated by the accumulation of volatile organic compounds (VOCs), like formic acid. Althoug...

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Autores principales:	Rodrigo Arévalo, Jadra Mosa, Mario Aparicio, Teresa Palomar
Formato:	article
Lenguaje:	EN
Publicado:	SpringerOpen 2021
Materias:	Glass Alteration Museum Showcases VOCs Formic acid Fine Arts N Analytical chemistry QD71-142
Acceso en línea:	https://doaj.org/article/c427cb8bdc644edeb62609619eed6597
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spelling	oai:doaj.org-article:c427cb8bdc644edeb62609619eed65972021-11-07T12:15:35ZDifferent low-cost materials to prevent the alteration induced by formic acid on unstable glasses10.1186/s40494-021-00617-x2050-7445https://doaj.org/article/c427cb8bdc644edeb62609619eed65972021-11-01T00:00:00Zhttps://doi.org/10.1186/s40494-021-00617-xhttps://doaj.org/toc/2050-7445Abstract The most frequent cause of glass degradation is environmental moisture, which is adsorbed on its surface forming a hydration layer that induces the rupture of the glass network. This pathology is accelerated by the accumulation of volatile organic compounds (VOCs), like formic acid. Although there is extensive knowledge about their impact, concentrations inside display cases are difficult to reduce efficiently. This study presents the assessment of different materials to reduce the concentration of formic acid to mitigate the degradation produced in unstable glasses. With this objective, copper threads, steel wool, silica gel, and activated carbon were chosen as low-cost materials with good adsorption or reactivity to the VOCs, exposing them in desiccators to an environment of 100% RH and 10 ppm of formic acid. Given that silica gel obtained the best results, its optimization as a sorbent material was evaluated by maintaining, regenerating, or renewing it when exposed next to the same glass. The tests carried out concluded that the hygroscopic capacity of the glasses exposed with silica gel decreased and, therefore, a lower degradation is observed on its surface. In addition, regenerating and renewing weekly the silica gel improved the results.Rodrigo ArévaloJadra MosaMario AparicioTeresa PalomarSpringerOpenarticleGlassAlterationMuseumShowcasesVOCsFormic acidFine ArtsNAnalytical chemistryQD71-142ENHeritage Science, Vol 9, Iss 1, Pp 1-16 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Glass Alteration Museum Showcases VOCs Formic acid Fine Arts N Analytical chemistry QD71-142
spellingShingle	Glass Alteration Museum Showcases VOCs Formic acid Fine Arts N Analytical chemistry QD71-142 Rodrigo Arévalo Jadra Mosa Mario Aparicio Teresa Palomar Different low-cost materials to prevent the alteration induced by formic acid on unstable glasses
description	Abstract The most frequent cause of glass degradation is environmental moisture, which is adsorbed on its surface forming a hydration layer that induces the rupture of the glass network. This pathology is accelerated by the accumulation of volatile organic compounds (VOCs), like formic acid. Although there is extensive knowledge about their impact, concentrations inside display cases are difficult to reduce efficiently. This study presents the assessment of different materials to reduce the concentration of formic acid to mitigate the degradation produced in unstable glasses. With this objective, copper threads, steel wool, silica gel, and activated carbon were chosen as low-cost materials with good adsorption or reactivity to the VOCs, exposing them in desiccators to an environment of 100% RH and 10 ppm of formic acid. Given that silica gel obtained the best results, its optimization as a sorbent material was evaluated by maintaining, regenerating, or renewing it when exposed next to the same glass. The tests carried out concluded that the hygroscopic capacity of the glasses exposed with silica gel decreased and, therefore, a lower degradation is observed on its surface. In addition, regenerating and renewing weekly the silica gel improved the results.
format	article
author	Rodrigo Arévalo Jadra Mosa Mario Aparicio Teresa Palomar
author_facet	Rodrigo Arévalo Jadra Mosa Mario Aparicio Teresa Palomar
author_sort	Rodrigo Arévalo
title	Different low-cost materials to prevent the alteration induced by formic acid on unstable glasses
title_short	Different low-cost materials to prevent the alteration induced by formic acid on unstable glasses
title_full	Different low-cost materials to prevent the alteration induced by formic acid on unstable glasses
title_fullStr	Different low-cost materials to prevent the alteration induced by formic acid on unstable glasses
title_full_unstemmed	Different low-cost materials to prevent the alteration induced by formic acid on unstable glasses
title_sort	different low-cost materials to prevent the alteration induced by formic acid on unstable glasses
publisher	SpringerOpen
publishDate	2021
url	https://doaj.org/article/c427cb8bdc644edeb62609619eed6597
work_keys_str_mv	AT rodrigoarevalo differentlowcostmaterialstopreventthealterationinducedbyformicacidonunstableglasses AT jadramosa differentlowcostmaterialstopreventthealterationinducedbyformicacidonunstableglasses AT marioaparicio differentlowcostmaterialstopreventthealterationinducedbyformicacidonunstableglasses AT teresapalomar differentlowcostmaterialstopreventthealterationinducedbyformicacidonunstableglasses
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Different low-cost materials to prevent the alteration induced by formic acid on unstable glasses

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