Cleaning, Iron Stain Removal, and Surface Repair of Architectural Marble and Crystalline Limestone: The Metropolitan Club

Matero, Frank G.; Tagle, Alberto A.

doi:10.2307/3179435

Cited by 4 publications

(6 citation statements)

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“…Specific chromatic alterations, occurring when metal parts, such as kingpins, brackets, nails, decorative elements, stabilization reinforcements, etc. are close to the carbonate stones, are certainly related to some aspects of the corrosion chemistry [5,6].…”

Section: Introductionmentioning

confidence: 92%

“…One of the most used complexing agents has been the citrate [5,16,17], although other carboxylic acids, such as oxalic and tartaric acid, have also been tested. Other methods have involved the use of ethylenediaminetetraacetic acid (EDTA) [18] or the hexadentate binder N, N, Nʹ, Nʹ-tetrakis-(2-pyridylmethyl)ethylenediamine (TPEN) which has a high affinity for iron and a low affinity for calcium [1].…”

Section: Introductionmentioning

confidence: 99%

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A green approach to clean iron stains from marble surfaces

et al. 2022

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In the field of cultural heritage restoration, the removal of iron corrosion stains is a difficult problem to deal with, especially in stone materials. Many studies in recent years have been aimed at finding simple and reliable methods using non-toxic chelating compounds. The search for natural non-toxic compounds is therefore of great relevance, especially in the conservation of cultural heritage, where the use of toxic chemical compounds often involves risks for the environment and human health. Following this trend, the purpose of this preliminary work was to verify the use of two proteins, Lactotransferrin (Ltf) and Ovotransferrin (Ovt), for the removal of iron-based stains on marble surfaces. The two proteins, whose high affinity for iron “in vivo” has been widely documented, were extracted from their natural matrices. The protein extracts were then immobilized using a common cellulose pulp. The poultices obtained were spread on the surfaces of artificially stained marble specimens and, after a set time, were easily removed. The effectiveness of the removal, visually evident, was detected by spectrocolorimetry and image analysis. The surface analyses, before and after the treatment, carried out by X-ray photoelectron spectroscopy (XPS), confirmed that both proteins have a selective and effective complexing capacity for the ferric ions of rust stains.

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Section: Introductionmentioning

confidence: 92%

Section: Introductionmentioning

confidence: 99%

A green approach to clean iron stains from marble surfaces

et al. 2022

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show abstract

“…Speci c chromatic alterations, occurring when metal parts, such as kingpins, brackets, nails, decorative elements, stabilization reinforcements, etc. are close to the limestones, are certainly related to some aspects of the corrosion chemistry [5,6].…”

Section: Introductionmentioning

confidence: 92%

“…It has been veri ed that the presence and the growth of iron oxides on carbonate stones are associated with the absorption of other components, as biological components and carbonaceous particulate, all contributing to the weathering process. Cleaning methods reported in the literature treat this complex problem with various strategies including the choice of chelants mixtures, the addition of redox components to control iron redox state, and removing other organic/inorganic pollutants [5,11,50].…”

Section: ф = Aryl Groupmentioning

confidence: 99%

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Green Approach to Clean Marble Surfaces

Campanella

Cardellicchio

Dell’Aglio

et al. 2021

Preprint

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In the field of cultural heritage restoration, the removal of iron corrosion stains is a difficult problem to deal with, especially in porous stone materials. Many studies in recent years have been aimed at finding simple and reliable methods using non-toxic chelating compounds. The search for natural compounds is therefore of great relevance, especially in the restoration of cultural heritage, where the use of toxic chemical compounds often involves risks for the environment and human health. Following this trend, the purpose of this preliminary work was to verify the use of two natural proteins, Lactotransferrin (Ltf) and Ovotransferrin (Ovt), for the removal of iron-based stains on marble surfaces. The two proteins, whose high affinity for iron "in vivo" has been widely documented, were extracted from their natural matrices. The protein extracts were then immobilized using a common cellulose pulp. The poultices obtained were spread on the surfaces of artificially stained marble specimens and, after a set time, were easily removed. The effectiveness of the removal, visually evident, was detected by spectrocolorimetry and image analysis. The surface analyses, before and after the treatment, carried out by X-ray photoelectron spectroscopy (XPS), confirmed that both proteins have a selective and effective complexing capacity for the ferric ions of rust stains.

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Archaeological Ceramic, Glass, and Stone

The Archaeologist’s Manual for Conservation

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Cleaning, Iron Stain Removal, and Surface Repair of Architectural Marble and Crystalline Limestone: The Metropolitan Club

Cited by 4 publications

References 0 publications

A green approach to clean iron stains from marble surfaces

A green approach to clean iron stains from marble surfaces

Green Approach to Clean Marble Surfaces

Archaeological Ceramic, Glass, and Stone

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