Kinetics of Aqueous Corrosion
AimsBefore you startIntroductionWhat's Going On? The Mechanism of Aqueous CorrosionWhen a Metal Corrodes - the Electrical Double LayerThe Energy LandscapeKinetics of Corrosion - the Tafel EquationThe Tafel PlotDiffusion Limited CorrosionPassivationPredicting Corrosion RatesCorrosion ControlSummaryQuestionsGoing furtherTLP creditsTLP contentsShow all contentViewing and downloading resourcesAbout the TLPsTerms of useFeedbackCredits Print this page
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Fick's First Law
Fick’s first law is described in the TLP on Diffusion. D, the diffusivity of oxygen in water has a value of 10-9 m2 s−1 at 298 K, δc is the difference in oxygen concentration between the bulk and at the surface. δx is the distance between the surface and the point at which oxygen is found in the bulk concentration – the diffusion layer thickness.