Abstract
The inhibitory action of 3-(trimethoxysilyl)propanethiol-1 (TMSPT) on carbon steel corrosion in NaCl 3.5% solutions of different pH (2, 6 and 12) at 25°C and with an initial dissolved oxygen content of 6.5 ppm was examined. Different amounts of TMSPT (0.5 × 10 −3, 1.1 × 10 −3 and 2.7 × 10 −3 mol l −1) were added to NaCl solutions. Electrochemical and weight loss tests show that the inhibitory action of TMSPT increases with increasing TMSPT concentration, and decreases with increasing exposure time, more strongly in solutions at pH 2 and 12 and weakly in solutions at pH 6. At pH 2 and 6 TMSPT acts as both an anodic and cathodic inhibitor, reaching an inhibiting power of 60% at its highest values; at pH 12, TMSPT mainly acts as a cathodic inhibitor, reaching a comparable inhibiting power.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: 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.