Synthesis, characterisation and effect of temperature on corrosion inhibition by thiosemicarbazone derivatives and its TIN(IV) complexes; [Sintesis, pencirian dan kesan suhu ke atas perencatan kakisan oleh ligan terbitan tiosemikarbazon dan kompleks Timah(IV)]

• Published in: Malaysian Journal of Analytical Sciences
• Main Author: Hazani N.N.; Dzulkifli N.N.; Ghazali S.A.I.S.M.; Mohd Y.; Farina Y.; Jamion N.A.
• Format: Article
• Language: English
• Published: Malaysian Society of Analytical Sciences 2018
• Online Access: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85057160484&doi=10.17576%2fmjas-2018-2205-03&partnerID=40&md5=79505e5b0844992fc8e8b98eec0c4230
• ISSN: 13942506
• DOI: 10.17576/mjas-2018-2205-03

Thiosemicarbazone derivatives and its tin(IV) complexes used in this study were 2-acetylpyridine 4-ethyl-3-thiosemicarbazone (HAcETSc), 2-acetylpyridine 4-methyl-3-thiosemicarbazone (HAcMTSc), 2-acetylpyridine 4-ethyl-3-thiosemicarbazone dichlorophenyltin (Sn(HAcETSc)PhenCl2), and 2-acetylpyridine 4-methyl-3-thiosemicarbazone dichlorophenyltin (Sn(HAcMTSc)PhenCl2). All these title compounds were characterised using an elemental analyser, Fourier-transform infrared-attenuated total reflectance spectroscopy (FTIR-ATR), ultraviolet-visible spectroscopy (UV-Vis), and nuclear magnetic resonance (NMR). The efficiency of the synthesised compounds as a corrosion inhibitor of mild steel in 1.0 M HCl was investigated using weight loss technique at different concentrations, 1, 2, and 3 mM, and at a temperature range of 30–60 °C. The thiosemicarbazone ligand and its tin(IV) complexes affirmed the hypothesis where the inhibitor efficiency tends to increase as the inhibitor concentration increases, indicating their potential use as a corrosion inhibitor for mild steel. Moreover, inhibitor efficiency decreases when temperature increases. © 2018, Malaysian Society of Analytical Sciences. All rights reserved.