摘要
This paper presents the results of kinetic studies to investigate the effect of FeS film formation on the degradation rate of CCl4 by 99.99%pure metallic iron. The film was formed by submersing metallic iron grains in an oxygen free HCO3−/CO32− electrolyte solution. When the grains had reached a quasi steady-state value of the corrosion potential, Na2S(aq) was injected. Upon injection, a µm thick poorly crystalline FeS film formed immediately on the iron surface. Over time, the iron became strongly corroded and both the FeS film and the metallic iron grains began to crack leading to exposure of bare metallic iron to the solution.