Abstract
GILDES, a computer-based model of atmospheric corrosion, has been used to simulate copper exposed at room temperature to 200 ppb in combination with either or at different concentrations. The GILDES model involves the five most important regimes in atmospheric corrosion (gas, liquid, deposition, electrodic, and surface) and includes 27 aqueous species and more than 60 aqueous reactions. Under these exposure conditions copper forms cuprite and various copper sulfates in both and mixtures, and copper hydroxynitrate in after an incubation time of 4 h. Among these experimental observations the GILDES model correctly predicts the formation of copper sulfate (in both and mixtures) and copper hydroxynitrate . It is furthermore able to predict the formation rate of copper sulfate in mixtures, but not the formation rate of copper sulfate and copper hydroxynitrate in mixtures.
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