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Table 2 EIS data of SB and its TMCSB (MC1–MC4)

From: Synthesis, biological evaluation and corrosion inhibition studies of transition metal complexes of Schiff base

Comp. Conc. (ppm) Rct (Ω cm−2) fmax (ohms) Cdl (µF cm−2) θ %IE
Blank 100 33.75548 13.90909 0.000338983 0 0
Int. 100 141.3292 77.20376 1.30371E–05 0.7612 76.12
MC1 100 84.13793 44.20063 1.04147E–05 0.5988 59.88
MC2 100 213.4702 103.05643 7.23449E–06 0.8419 84.19
MC3 100 158.3699 77.08464 1.45865E–05 0.7869 78.69
MC4 100 188.4013 81.11285 4.27957E–05 0.8208 82.08
  1. Conc. concentration of the solution, Rct charged transfer resistance, Cdl capacitance double layer, %IE percentage of inhibition efficiency, fmax frequency at maximum imaginary component of impedance, θ Theta angle values