Table 4. LPR variables for mild steel submerged in 1 M HCl using varying amounts of DMF polymer.

Conc. (ppm)	E corr (mV (SCE))	I corr (μA cm−2)	R p (Ω cm2)	IE (%)
Blank	−449.2	754	30.14	—
20	−426.9	428	53.4	43.56
40	−404.7	300.1	84.6	64.37
60	−425.1	211	115.4	73.88
80	−422.1	115	256.2	88.24
100	−417.5	52	386	92.19
120	−429.11	46	436.2	93.09