Table 2 EIS parameters and inhibition efficiency of CS in SFW as a function of avocado extract concentrations at 298 K.

From: Studies on the effects of avocado extract on carbon steel resistance to corrosion in salty formation water

Avocado extract

(mg L−1)

R1

(Ω cm2)

Q1

(µF cm−2)

R2

(Ω cm2)

Q2

(µF cm−2)

χ2

ER%

Blank

312 ± 3.2

64.7 ± 2.8

15.8 ± 1.7

45.0 ± 1.1

2.2 × 10−4

-

20

489 ± 4.7

52.8 ± 2.9

22.5 ± 1.8

44.2 ± 1.2

2.9 × 10−4

36.2

40

772 ± 5.3

50.9 ± 1.9

25.3 ± 1.8

39.9 ± 1.0

3.2 × 10−4

59.5

60

1123 ± 8.4

43.9 ± 2.0

31.5 ± 2.1

37.2 ± 1.3

1.9 × 10−4

72.2

80

1567 ± 12.4

32.2 ± 1.3

33.2 ± 2.1

31.0 ± 1.4

3.7 × 10−4

80.0

100

2492 ± 15.8

10.7 ± 0.9

38.6 ± 2.6

28.9 ± 0.7

1.7 × 10−4

92.4