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Short report of corrosion inhibition of mild steel corrosion in hydrochloric acid by 4-ethyl-1-(4-oxo-4-phenylbutanoyl) thiosemicarbazide |
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PP: 83-88 |
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doi:10.18576/ijtfst/110110
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Author(s) |
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Ahmed A. Alamiery,
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Abstract |
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| The inhibitive efficacy of 4-ethyl-1-(4-oxo-4-phenylbutanoyl) thiosemicarbazide (EOPT) as a newly synthesized corrosion inhibitor on mild steel in 1 M HCl medium was investigated through gravimetric techniques. The experimental findings reveal that the inhibitive efficacy was observed to increase with increasing EOPT concentration from 100 to 500 ppm, whereas the corrosion rate decrease with increasing the concentration of the tested inhibitor. The highest inhibitive efficacy 96.1% was recognized after the addition of a 500 ppm EOPT. The inhibitive performance was described according to the adsorption of EOPT molecules on the surface of mild steel. The adsorption isotherm model obeys Langmuir adsorption isotherm through physisorption and chemosorption adsorption mechanism.
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