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. 2016 Jan 22;6:19890. doi: 10.1038/srep19890

Table 5. Electrochemical frequency modulation (EFM) parameters for mild steel in 1.0 M HCl with various concentrations of azelaic acid dihydrazide at 30 °C.

Conc. (mM) Icorr (mA cm−2) β1 (mV dec−1) β2 (mV dec−1) C.R. (mpy) IEEFM (%) CF-2 CF-3
Blank 3.759 81.67 93.75 390.3 0.00 1.101 3.26
0.05 2.832 104.4 156.5 288.3 24.66 2.038 2.241
0.10 1.637 88.05 124.9 166.7 56.45 1.993 2.845
0.20 1.590 89.54 132.6 161.8 57.70 1.936 3.407
0.40 0.873 90.81 121.8 88.86 76.78 2.063 5.051
0.50 0.0096 104.3 111.1 31.12 99.70 1.664 3.672