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Title: | The performance of an induced calcium oxalate surface on globigerina limestone |
Authors: | Dreyfuss, Tabitha Cassar, JoAnn |
Keywords: | Oxalates Globigerina limestone -- Conservation and restoration -- Malta Scanning electron microscopy Calcium salts |
Issue Date: | 2012 |
Citation: | Dreyfuss, T., & Cassar, J. (2012, October). The performance of an induced calcium oxalate surface on globigerina limestone. Proceedings of the 12th International Congress on the Deterioration and Conservation of Stone, New York. |
Abstract: | This paper contains the second set of results obtained from a research programme that consisted of an induced surface conversion of weathered Globigerina limestone from calcium carbonate to calcium oxalate and the prospects of it being used for the conservation of this stone. The first part of the research confirmed the formation of calcium oxalate even in salt (sodium chloride) contaminated samples. The second phase of the research showed that the production of calcium oxalate resulted in the formation of a more compact, more cohesive, and harder surface when compared to untreated samples, which showed no colour change, retained the original hydrophilic and wetting properties of the stone and also increased the stone’s resistance to acid attack (acetic and hydrochloric acid), and to salt weathering (using sodium sulphate). |
URI: | https://www.um.edu.mt/library/oar/handle/123456789/120822 |
Appears in Collections: | Scholarly Works - FacBenCBH |
Files in This Item:
File | Description | Size | Format | |
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The_performance_of_an_induced_calcium_oxalate_surface_on_globigerina_limestone_2012.pdf Restricted Access | 211.75 kB | Adobe PDF | View/Open Request a copy |
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