Naslov
The inhibiting effect of 1-phenyl-4-methyl imidazole on bronze

Autori
Otmačić Ćurković, Helena ; Marušić, Katarina ; Prtenjak, Andreja ; Škrobica, Ana ; Stupnišek-Lisac, Ema

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
Meeting Abstracts 212th ECS Meeting / - : The Electrochemical Society (ECS), 2007

Skup
212th ECS Meeting

Mjesto i datum
Washington D.C., Sjedinjene Američke Države, 07.10.2007. - 12.10.2007

Vrsta sudjelovanja
Poster

Vrsta recenzije
Nije recenziran

Ključne riječi
bronze protection; acid rain; corrosion inhibitor

Sažetak
From antiquity bronzes have been widely used to produce sculptures and other objects of art. Bronze, as an alloy of copper, is much more stable than copper itself, in atmospheric conditions. Because of the later increased air pollution (acid rain), artifacts made of bronze have become more soluble. This is the reason why it has become necessary to protect these artifacts.To simulate atmospheric conditions the measurements on bronze were made in an aerated solution composed of 0.2 g L-1 Na2SO4 + 0.2 g L-1 NaHCO3. The SO42- ions are one of the main pollutants in urban atmosphere due to the industrial activity and the emission by automotive vehicles. To simulate conditions of acid rain the solutions pH value was adjusted to pH3 by addition of a dilute sulphuric acid. All experiments were performed at room temperature using by electrochemical methods: potentiodynamic measurements and the electrochemical impedance spectroscopy. Organic inhibitors are often used for protection of bronze. Previous investigations1-3 have shown that imidazole derivatives are good copper corrosion inhibitors in different media. The aim of this work was to investigate the efficiency and optimal concentration of a non-toxic organic inhibitor: 1-phenyl-4-methyl-imidazole as a bronze corrosion inhibitor.

Izvorni jezik
Engleski

Znanstvena područja
Kemijsko inženjerstvo

POVEZANOST RADA