A Study of N,N-Diethylammonium O,O′-Di(p-methoxyphenyl)dithiophosphate as New Corrosion Inhibitor for Carbon Steel in Hydrochloric Acid Solution

Table 4

The corrosion rate and inhibitor efficiency for carbon steel in 0.5 M HCl in the absence and presence of different concentrations of EAPP at 300 K from weight loss measurements.

(mg L^−1)	(g m^−2 h^−1)	IEWeight  loss (%)
0	4.598	—
40	2.028	55.90
80	1.086	76.38
100	0.729	84.15
120	0.446	90.30
160	0.233	94.93