Concentration

(g/L)

Corrosion rate

(mg/cm²/hr)

Surface coverage

(θ)

Inhibition efficiency

(%I)

Blank

0.0100

0.28

28

0.5

0.0072

0.41

41

1.0

0.0059

0.78

78

2.5

0.0022

0.88

88

4.0

0.0012

0.91

91

5.0

0.0009

0.95

95

7.5

0.0005

0.96

96

10.0

0.0004

1.00

99.99