Anionic Surfactant as a Corrosion Inhibitor for Synthesized Ferrous Alloy in Acidic Solution

Table 4

Electrochemical parameters deduced by the Tafel method in 1 N H₂SO₄ in the absence and presence of various concentrations of SDBS.

[SDBS]; (mol/L)	𝐸corr; (mV)	𝑏𝑎; (mV/dec)	−𝑏𝑐; (mV/dec)	𝐼corr; (mA·cm^−2)	%𝐸	𝜃
0	−923	48	130	0.73	/	/
10^−3	−1000	50	90	0.26	64	0.64
10^−2	−963	52	80	0.25	66	0.66
2⋅10^−2	−959	40	60	0.12	84	0.84
4⋅10^−2	−974	58	70	0.34	52	0.52