Oxamate salts as novel agents for the restoration of marble and limestone substrates : case study of ammonium N-phenyloxamate
MetadataShow full item record
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.
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
New Journal of Chemistry
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/).
Items in the St Andrews Research Repository are protected by copyright, with all rights reserved, unless otherwise indicated.