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Adsorption Behavior and Corrosion Inhibition of S-benzyl-O,O'-dibenzyldithiophosphate for Carbon Steel in Hydrochloric Acid Solution

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Abstract:

The corrosion inhibition of S-benzyl-O,O'-dibenzyldithiophosphate (BBP) for carbon steel in hydrochloric acid solution was studied by electrochemical measurements and weight loss measurements. Polarization curves indicate BBP is a mixed-type inhibitor, and the effects of temperature, hydrochloric acid concentration and immersion time were also studied. The studies of weight loss measurement show that the inhibition efficiency was up to 97.39 % at the BBP concentration of 60 mg·L-1 in 1.0 M hydrochloric acid solution at 30°C. The adsorption of BBP on carbon steel surface obeys the Langmuir isotherm.

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Periodical:

Advanced Materials Research (Volumes 781-784)

Pages:

295-298

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.781-784.295

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Online since:

September 2013

Authors:

Yan Lu*, Sha Sha Zhu, Bin Xie, Chuan Lai, Qin Huan Yang, Lin Xin He, Yu Long Li, Li Ke Zou

Keywords:

Adsorption, Carbon Steel, Corrosion Inhibitor, O,O'-Dialkyldithiophosphate

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© 2013 Trans Tech Publications Ltd. All Rights Reserved

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