Alizarin violet 3B as a novel corrosion inhibitor for steel in HCl, H2SO4 solutions |
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| Authors: | Shuduan Deng Xianghong Li Hui Fu |
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| Affiliation: | aFaculty of Materials Engineering, Southwest Forestry University, Kunming 650224, PR China;bFaculty of Science, Southwest Forestry University, Kunming 650224, PR China |
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| Abstract: | The inhibition effect of alizarin violet 3B (AV3B) on the corrosion of cold rolled steel (CRS) in 1.0 M HCl and 0.5 M H2SO4 solutions was investigated for the first time by weight loss, potentiodynamic polarization curves and electrochemical impedance spectroscopy (EIS) methods. The results show that AV3B is a good inhibitor, and exhibits more efficient in 1.0 M HCl than 0.5 M H2SO4. The adsorption of AV3B on CRS surface obeys Langmuir adsorption isotherm in both acids. Polarization curves reveal that AV3B acts as a mixed-type inhibitor. |
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| Keywords: | A Steel B EIS B Polarization B Weight loss C Acid inhibition |
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