4-Ethylcyclohexanonethiosemicarbazone as Corrosion Inhibitor for Iron Metal in 0.5N Hydrochloric Acid Solutions

Meena, Lakshmi; Choudhary, Preeti; Varshney, Anshu D.; Varshney, S.

doi:10.20902/ijctr.2018.110740

Cited by 2 publications

(3 citation statements)

References 23 publications

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“…Thiosemicarbazide, ethyl alcohol and hydrochloric acid were directly procured from Molychem India Limited. The BDHNPMTU and DHNPMHC were synthesized and characterized on the basis of reported various past research studies [32][33][34][35][36][37].…”

Section: Methodsmentioning

confidence: 99%

A Comparative Study of Inhibitive Effects of Some New Schiff Bases on Copper Corrosion in Acidic Medium

Kumar

Swami

2022

JASR

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In this research two new Schiff bases N,N'-bis[(3,4-dihydroxy-5-nitrophenyl)methylidene]thiourea (BDHNPMTU) and 2-[(3,4-dihydroxy-5-nitrophenyl)methylidene]hydrazine-1-carbothioamide (DHNPMHC) were synthesized by condensation of 3,4-dihydroxcy-5-nitro-benzaldehyde with Thiourea and Thiosemicarbazide. The structures of Schiff bases were fully characterized by elemental analysis, FT-IR and UV–Vis methods. The inhibitive effects of two Schiff bases BDHNPMTU and DHNPMHC towards the corrosion on copper in 0.5M HCl were investigated using weight loss measurement technique. Surface morphology of metal surface in presence and absence of inhibitors were studied by scanning electron microscope (SEM). Results show that both BDHNPMTU and DHNPMHC are an effective inhibitor for copper corrosion in 0.5 M HCl solution. It was found that inhibition efficiency increases with increasing concentration of inhibitor. Adsorption of the inhibitor on the copper surface followed Langmuir adsorption isotherm. SEM study also support the inhibition of corrosion of copper. BDHNPMTU and DHNPMHC show maximum inhibition efficiency i.e. 96% and 95.83% at highest concentration of inhibitor (5X10-5M). The order of inhibition efficiency of the two Schiff’s bases for Cu metal are BDHNPMTU>DHNPMHC.

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Section: Methodsmentioning

confidence: 99%

A Comparative Study of Inhibitive Effects of Some New Schiff Bases on Copper Corrosion in Acidic Medium

Kumar

Swami

2022

JASR

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“…45(2) Sn1-Cl2 2.485(6) Sn1-C11 2.16(2) N3-C4 1. 30(2) N1-C3 1. 35(2) Sn1-S1 2.500(6) S1-C3 1.77(1) N2-N3 1.…”

Section: Busn(l)cl2mentioning

confidence: 99%

“…The C3-S1 bond distance was 1.766 Å, which corresponded to a single bond character nearer to the values of the C-S bond at 1.82 Å(Khalaji et al, 2010). The bond distance C3-N2 was 1 30…”

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confidence: 99%

Synthesis, Characterisation, Crystal Structure and Anti-corrosion Studies of an Organotin(IV) Complex of 2-acetylpyridine 4-ethyl-3-thiosemicarbazone (LH): n-BuSn(L)Cl2

Hazani¹,

Dzulkifli²,

Ghazali³

et al. 2019

ASMScJ

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This study explored the possibility of Schiff-base ligand compound, 2-acetylpyridine 4-ethyl-3thiosemicarbazone (LH) and its organotin(IV) complex (BuSn(L)Cl2) as a corrosion inhibitor for mild steel in 1M hydrochloric acid (HCl) medium. The chemical structures of the synthesised compounds were confirmed by performing elemental analysis, FT-IR, UV-Vis, NMR spectroscopy, and X-ray crystallography diffraction study. The structure showed the LH served as a tridentate (N, N', S) donor to tin through its pyridyl, azomethine nitrogen, and thiolate sulphur. The corrosion inhibition characteristics of the free Schiff-base ligand and its organotin complex were studied by the standard weight loss method. They showed inhibition activity through adsorption, and this phenomenon was found to obey Langmuir adsorption isotherm. The inhibition efficiency of both compounds was found to increase as their concentration was increased from 1 to 3mM, but the efficiency achieved with the tin complex was greater, being 98.98% at 3mM concentration.

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4-Ethylcyclohexanonethiosemicarbazone as Corrosion Inhibitor for Iron Metal in 0.5N Hydrochloric Acid Solutions

Cited by 2 publications

References 23 publications

A Comparative Study of Inhibitive Effects of Some New Schiff Bases on Copper Corrosion in Acidic Medium

A Comparative Study of Inhibitive Effects of Some New Schiff Bases on Copper Corrosion in Acidic Medium

Synthesis, Characterisation, Crystal Structure and Anti-corrosion Studies of an Organotin(IV) Complex of 2-acetylpyridine 4-ethyl-3-thiosemicarbazone (LH): n-BuSn(L)Cl2

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