Effect of 3-Nitroacetophenone on Corrosion Inhibition of Mild Steel in Acidic Medium

Table 1

Corrosion rate (mm/y) and inhibition efficiency obtained from weight loss measurements for MS specimen in the absence and presence of 0-250 ppm concentrations of 3-NA inhibitor in acidic medium (1 N HCl).

Conc. (ppm)	Blank (1 N HCl)	50	100	150	200	250
Weight loss (g)	0.0073	0.0041	0.0034	0.0031	0.0029	0.0026
Corrosion rate (mm/y)	8.1259	4.5695	3.7893	3.455	3.2321	2.8977
Surface coverage ()	—	0.4384	0.5342	0.5753	0.6027	0.6438
Inhibition efficiency (%)	—	43.84	53.42	57.53	60.27	64.38