Dimeric 1,3,5-triazinane-based derivatives as corrosion inhibitors for Q235 carbon steel in 1.0 mol per L HCl.

ABSTRACT: In this work, 5,5'-(propane-1,3-diyl)bis-(1,3,5-triazinane-2-thione) (PBT) was successfully prepared by a three-component condensation method using thiourea, formaldehyde and 1,3-diaminopropane. The inhibition properties of PBT in 1.0 mol per L HCl were investigated by gravimetric measurement, electrochemical analysis, surface analysis and quantum chemical methods. The results show that the inhibition efficiency of PBT is close to 90% at 298.15 K in the concentration range of 0.005-1.0 mmol L^-1, where the maximum inhibition efficiency of PBT is 92.1% at a concentration of 1.0 mmol L^-1. In addition, the adsorption of PBT on the carbon steel surface is consistent with the Langmuir isothermal model. Both experimental and theoretical calculations show that PBT exhibits ex

SUBMITTER: Wang Y 

PROVIDER: S-EPMC11886960 | biostudies-literature | 2025 Mar

REPOSITORIES: biostudies-literature