The effect of βFeOOH synthesis routes on its ability to corrode iron

Emmerson, Nicola ORCID: https://orcid.org/0000-0001-5277-0865, Watkinson, David ORCID: https://orcid.org/0000-0002-5696-9780, Roche, Kimberly, Seifert, Jerrod and Thunberg, Johanna 2022. The effect of βFeOOH synthesis routes on its ability to corrode iron. Presented at: Metal 2022: 10th Interim Meeting of the ICOM-CC Metals Working Group, Helsinki, Finland, 5 - 9 September 2022.

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Abstract

Akaganeite (βFeOOH) occludes chloride within its crystal structure and adsorbs it onto it surface during its formation. βFeOOH was synthesised by solid-state and aqueous precipitation routes. The amount of adsorbed chloride removed by a single aqueous wash was measured. The impact of the synthesised βFeOOH on the oxidation rate of iron was determined by using a remote oxygen sensing technique to record oxygen concentrations within a sealed vessel, internally controlled to 80% relative humidity and containing mixture of βFeOOH and iron powder. The oxidation rate of iron was directly related to the mass% of adsorbed chloride removed by the aqueous wash. This contributes to understanding of both iron corrosion and the development of conservation treatments.

Item Type:	Conference or Workshop Item (Paper)
Date Type:	Completion
Status:	Unpublished
Schools:	History, Archaeology and Religion
Subjects:	A General Works > AM Museums (General). Collectors and collecting (General) C Auxiliary Sciences of History > CC Archaeology Q Science > QD Chemistry
Date of First Compliant Deposit:	4 May 2022
Last Modified:	10 Nov 2022 11:11
URI:	https://orca.cardiff.ac.uk/id/eprint/149542

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