Role of environmental particulate matters on corrosion of copper

Özet

Effect of environmental particulate materials on kinetics and mechanism of corrosion of industrial gradecopper exposed in different parts of India is investigated. It is observed that the level of particulatematerials in the atmosphere has more dominant role than the acidic gases on initiation of corrosion,formation of protective patina on the surface of the exposed samples leading to mitigation of corrosion.The identification of corrosion products formed on the surface of exposed samples by Raman spectroscopyprovides very vital information to explain the observed corrosion rate of the metal computed indifferent environments. Electrochemical anodic polarization of the exposed samples supports themechanism proposed for accelerating and protective effect on corrosion of the metals exposed indifferent environments.