酸性溶液中甲基红对钢的缓蚀作用

INHIBITORY EFFECT OF METHYL RED ON CORROSION OF STEEL IN ACIDIC SOLUTIONS

用极化曲线和交流阻抗技术测定了钢在含不同浓度甲基红的 1.0 mol/ L HCl和 0 .5 m ol/ L H2 SO4+0 .5 mol/ L Na2 SO4溶液中的腐蚀速率和传递电阻 ,求出了缓蚀效率。结果表明 ,甲基红无论是在 HCl溶液中或是在0 .5 mol/ L H2 SO4+0 .5 mol/ L Na2

The corrosion rate and transfer resistance of steel electrode in 1mol/L HCl and 0 5mol/L H 2SO 4+0 5mol/L Na 2SO 4 solutions in the presence of methyl red have been studied using polarization curve measurements and AC impedance technique The inhibition efficiency has been calculated The experimental results show that the methyl red is a relatively good corrosion inhibitor in acidic solutions