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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