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Oxamate salts as novel agents for the restoration of marble and limestone substrates : case study of ammonium N-phenyloxamate

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Woollins_2016_NJC_Oxamate_CCBY.pdf (2.539Mb)
Date
01/03/2016
Author
Maiore, Laura
Aragoni, M. Carla
Carcangiu, Gianfranco
Cocco, Ombretta
Isaia, Francesco
Lippolis, Vito
Meloni, Paola
Murru, Arianna
Slawin, Alexandra Martha Zoya
Tuveri, Enrica
Woollins, J Derek
Arca, Massimiliano
Keywords
QD Chemistry
DAS
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Abstract
The ammonium salt of N-phenyloxamic acid (AmPhOxam) was synthesised, characterised by FT-IR, FT-Raman, UV-Vis, 1H-NMR spectroscopic methods and single crystal X-ray diffraction, and evaluated as a protective and consolidating agent for calcareous stone substrates under mild conditions. Hydro-alcoholic solutions of AmPhOxam were tested for the treatment of naturally weathered white marble and biomicritic limestone. Mercury intrusion porosimetry, FT-NIR spectroscopy measurements and SEM microscopy showed the formation of a superficial protective layer of crystals of the corresponding monohydrated calcium salt, CaPhOxam, on both treated stones.
Citation
Maiore , L , Aragoni , M C , Carcangiu , G , Cocco , O , Isaia , F , Lippolis , V , Meloni , P , Murru , A , Slawin , A M Z , Tuveri , E , Woollins , J D & Arca , M 2016 , ' Oxamate salts as novel agents for the restoration of marble and limestone substrates : case study of ammonium N-phenyloxamate ' , New Journal of Chemistry , vol. 40 , no. 3 , pp. 2768-2774 . https://doi.org/10.1039/C5NJ02505B
Publication
New Journal of Chemistry
Status
Peer reviewed
DOI
https://doi.org/10.1039/C5NJ02505B
ISSN
1144-0546
Type
Journal article
Rights
Copyright 2016 the Authors. This article is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported Licence (http://creativecommons.org/licenses/by-nc/3.0/).
Collections
  • University of St Andrews Research
URL
http://www.rsc.org/suppdata/c5/nj/c5nj02505b/c5nj02505b1.pdf
URI
http://hdl.handle.net/10023/8426

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