GILDES MODEL STUDIES OF AQUEOUS CHEMISTRY .2. THE CORROSION OF ZINC IN GASEOUS EXPOSURE CHAMBERS

The GILDES model has been used to perform the first theoretical mechan istic study of the atmospheric corrosion of zinc in a controlled envir onment. Detailed comparisons are made of model results with laboratory data for short-term (0-1000 min) and long-term (0-680 h) exposures of zinc to SO2, NO2 and O-3 at high relative humidities. The agreement o f theory and experiment is excellent, indicating that the model has ca ptured the principal processes (especially ligand-promoted dissolution ) involved in the corrosion of zinc under these conditions. Copyright (C) 1996 Published by Elsevier Science Ltd