Triazolyl blue tetrazolium bromide as a novel corrosion inhibitor for steel in HCl and H2SO4 solutions |
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| Authors: | Xianghong Li Shuduan Deng Hui Fu |
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| Affiliation: | aDepartment of Fundamental Courses, Southwest Forestry University, Kunming 650224, PR China;bFaculty of Wood Science and Decoration Technology, Southwest Forestry University, Kunming 650224, PR China |
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| Abstract: | The inhibition effect of triazolyl blue tetrazolium bromide (TBTB) on the corrosion of cold rolled steel (CRS) in 1.0 M HCl and 0.5 M H2SO4 solution was investigated for the first time by weight loss, potentiodynamic polarization curves, and electrochemical impedance spectroscopy (EIS) methods. The results show that TBTB is a very good inhibitor, and is more efficiency in 1.0 M HCl than 0.5 M H2SO4. The adsorption of TBTB on CRS surface obeys Langmuir adsorption isotherm. Polarization curves reveal that TBTB acts as a mixed-type inhibitor in both acids. |
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| Keywords: | A Steel B EIS B Polarization B Weight loss C Acid inhibition |
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