A note on the use of alkaline dithionite for treating ancient bronze artifacts

Micro-layers of polystyrene film preventing metal oxidation: implications in cultural heritage conservation

“…While during the 80 and the 90 of twentieth century, many studies had focused also on the research of effective methods to remove the chemical agents (i.e. chlorides) responsible of the degradation phenomena [11][12][13], in the last years, new materials to protect metal artefacts, based on coating with organic polymeric films, have been studied. Most of them involve the use of BTA derivatives as the 5-octyl-1,2,3-benzotriazole that, due to the presence of aliphatic chains, leads to more resistant and hydrophobic films [14], or bi-triazoles and amino-triazoles, with lower environmental impact [15].…”