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Corrosion of bronze by acetic and formic acid vapours, sulphur dioxide and sodium chloride particles
Author(s) -
Bastidas J. M.,
Chico B.,
Alonso M. P.,
Mora E. M.
Publication year - 1995
Publication title -
materials and corrosion
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.487
H-Index - 55
eISSN - 1521-4176
pISSN - 0947-5117
DOI - 10.1002/maco.19950460902
Subject(s) - vapours , formic acid , acetic acid , chemistry , bronze , inorganic chemistry , chloride , nuclear chemistry , corrosion , sulfuric acid , relative humidity , sulfur dioxide , sodium , sulfur , materials science , metallurgy , organic chemistry , neuroscience , biology , physics , thermodynamics
This paper studies the corrosion of patinated and unpatinated bronze by acetic and formic acid vapours, sulphur dioxide and sodium chloride salt particles, at 100% relative humidity. Weight loss, X‐ray diffraction, infrared and scanning electron microscopy were the techniques used. Acetic and formic acid vapours, sulphur dioxide and sodium chloride produce a high corrosion rate on bronze. In general, no protective effect was found by the patina on bronze. The principal compounds identified were Cu 2 O, Cu 2 S, Cu 5 (SO 4 ) 2 (OH) 6 · 5H 2 O, Cu(CH 3 CO 2 ) 2 · XH 2 O and Cu(HCO 2 )2.