Table 1 Percentage corrosion inhibition efficiency of varied concentrations of BLE extract for X52-steel in 1.0 M HCl at 298 K calculated by weight loss method.

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

BLE (mg L−1)

ν (μg cm−2 min−1)

θ

ηW%

Blank

20.23 ± 0.43

 

–

25

15.80 ± 0.40

0.217

21. 7

50

12.77 ± 0.32

0.368

36.8

100

5.81 ± 0.29

0.712

71.2

200

2.16 ± 0.30

0.893

89.3

300

1.13 ± 0.22

0.944

94.4

400

1.09 ± 0.13

0.946

94.6

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