Research Article

Anticorrosion Activity of 8-Quinoline Sulphonyl Chloride on Mild Steel in 1 M HCl Solution

Table 3

Potentiodynamic polarization parameters values for mild steel in 1 M HCl solution containing various concentrations of inhibitor.

Conc. of QSC (ppm) (V/dec) (V/dec) (mV/SCE) (mA/cm2)Surface coverage (θ)IE (%) η

Blank (1 M HCl)6.9076.374−2631.894
507.2356.933−3340.89140.529452.94
1006.9637.575−3390.72660.616461.64
1506.6207.664−3470.67880.641664.16
2007.3007.038−3550.58130.693169.31
2506.7026.992−3590.44740.763876.38
3007.1197.355−3620.38500.796779.67