Abstract
The kinetics of iron dissolution in acidic and neutral sodium sulphate solutions have been investigated, using stationary and non-stationary galvanostatic techniques. The experimental results in acidic solution agree with a consecutive mechanism proposed by Bockris, assuming adsorption of (FeOH) ads following a Langmuir type isotherm. Such a dissolution mechanism is to be expected with the used material (low surface activity). For pH values higher than about five, stationary Tafel slopes increase to + ≃ + 65 mV, whereas the electrochemical reaction order with respect to pH decreases. These results also agree with the consecutive (Bockris-) dissolution mechanism, if for the adsorption of (FeOH) ads a Frumkin type isotherm is assumed.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
