Table 2 Percentage corrosion inhibition efficiency and polarization parameters of varied concentrations of BLE extract for X52-steel in 1.0 M HCl at 298 K calculated by polarization method.

From: Utilizing birch leaf extract in pickling liquid as a sustainable source of corrosion inhibitor for pipeline steel

BLE (mg L−1)

Ecorr. mV (SCE)

jcorr. (μA cm−2)

βa (mV dec−1)

− βc (mV dec−1)

ηj%

Blank

− 471

629.3

72.4

165.6

–

25

− 470

422.2

84.3

173.7

32.9

50

− 464

368.1

87.8

134.7

41.5

100

− 484

145.9

92.8

188.7

76.8

200

− 482

61.6

98.8

182.5

90.2

300

− 485

32.0

101.3

178.9

94.9

400

− 488

30.6

105.3

189.4

95.1

Back to article page