Corrosion Inhibition of Oxytetracycline for Cold Rolled Steel in HAc Solution in Presence of Cl<sup>-</sup>

YU Jin-miao; YANG Yan; SHI Yin-hao; BAI Wei; YE Yan-qing; LI Qiu-yun; ZHONG Jia-cai

Corrosion & Protection > 2014 > 35(11): 1083-1086.

YU Jin-miao, YANG Yan, SHI Yin-hao, BAI Wei, YE Yan-qing, LI Qiu-yun, ZHONG Jia-cai. Corrosion Inhibition of Oxytetracycline for Cold Rolled Steel in HAc Solution in Presence of Cl^-[J]. Corrosion & Protection, 2014, 35(11): 1083-1086.

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Corrosion Inhibition of Oxytetracycline for Cold Rolled Steel in HAc Solution in Presence of Cl^-

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Received Date: December 23, 2013

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The corrosion inhibition of expired drugs oxytetracycline (OTC) for cold rolled steel (CRS) in 20% HAc solution in the presences of Cl- was investigated by mass loss, conductivity measurement and electrochemical methods. The results showed that OTC was a good inhibitor for cold rolled steel in 20% HAc solution in the presence of Cl-, and the inhibition efficiency increased with the increase of the inhibitor concentration, and the inhibition efficiency was up to 88.6% at the concentration of 7.0 g·L-1. It is a mixed-type inhibitor. The adsorption of inhibitors on the CRS surface is spontaneous physisorption and chemisorption, also obeys the Langmuir adsorption isotherm equation.
- acetic acid,
- cold rolled steel (CRS),
- oxytetracycline(OTC),
- Cl-

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Corrosion Inhibition of Oxytetracycline for Cold Rolled Steel in HAc Solution in Presence of Cl-

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Corrosion Inhibition of Oxytetracycline for Cold Rolled Steel in HAc Solution in Presence of Cl^-