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

Emmerson, Nicola ORCID:, Watkinson, David ORCID:, 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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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Status: Unpublished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

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