Abstract
Deposition velocities, V d, reaction probabilities, γ, and local adsorption parameters, k 1, describing the isotherms of ethane, ethene, ethyne, propene and 1-butene onto three solid pigments (PbO, Fe 2O 3, CdS) have been determined in the absence and in the presence of NO 2, together with the surface reaction rate constant, k 2, and the desorption rate constant, k −1. The calculations are based on experimental adsorption isotherms, since the linear adsorption model is not a very good approximation for inorganic solids like those mentioned above. The important result found is the effect of NO 2 on the values of the parameters V d, γ, k 1, k −1 and k 2 in most cases.
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