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Table 4 Electrochemical polarization data of the inhibitors.

From: Recent advances in the use of benzimidazoles as corrosion inhibitors

Conc (mM) βa (mV dec−1) βc (mV dec−1) Ecorr (V) Icorr (A/cm2) θ %E
Compound 34
 0.0 194 133 − 0.5340 5.89 × 10−4
 0.01 211 135 − 0.5284 5.194 × 10−4 0.1183 11.83
 0.03 241 133 − 0.5470 3.977 × 10−4 0.3249 32.49
 0.07 229 115 − 0.5472 3.577 × 10−4 0.3928 39.28
 0.2 176 91 − 0.5433 2.399 × 10−4 0.5927 59.27
Compound 35
 0.0 194 133 − 0.5340 5.89 × 10−4
 0.01 151 117 − 0.5184 3.46 × 10−4 0.4126 41.26
 0.03 153 112 − 0.5309 3.29 × 10−4 0.4415 44.15
 0.07 171 119 − 0.5332 2.881 × 10−4 0.5109 51.09
 0.2 166 95 − 0.5296 1.813 × 10−4 0.6922 69.22