Abstract
The dissolution behavior of tin from pure tin and Sn–Fe alloys in sodium hydroxide solutions has been investigated using a rotating disc. The effects of the composition of the alloys, disc rotation speed, sodium hydroxide concentration, oxygen potential and temperature on the dissolution kinetics of tin have been studied. The dissolution rate of tin from a 50 wt.% Sn–50 wt.% FeSn 2 mixture in sodium hydroxide solutions was found to be higher than that from pure tin. This is attributed to the fact that polarity reversal occurred between tin and iron from Sn–FeSn 2 in sodium hydroxide media and therefore, tin of the FeSn 2 acted as an anodic. The dissolution rate of tin from pure tin in sodium hydroxide solutions was found to be controlled by mass transfer of oxygen through the diffusion boundary layer. The dissolution of tin from Fe–Sn alloys, however, involved a mixed-control mechanism of diffusion and chemical reaction.
Sign-in/Register to access full text options 
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.
