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International Scholarly Research Notices
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2012
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Article
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Fig 1
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Research Article
Black Wattle Tannin As Steel Corrosion Inhibitor
Figure 1
Influence of tannin concentration in the polarization resistance (
𝑅
𝑝
) for carbon steel samples immersed 1 day in aerated 0.1 mol L
−1
Na
2
SO
4
solutions: (□) pH 2.5 medium and (●) pH 6 medium.