Inhibition of Mild Steel Corrosion in Sulphuric Acid Using Esomeprazole and the Effect of Iodide Ion Addition

Table 2

Weight loss values of esomeprazole at various temperatures in 1 M H₂SO₄ solution.

Concentration of inhibitor (ppm)	Corrosion rate (mm y^−1)				Inhibition efficiency (%)
	303 K	313 K	323 K	333 K	303 K	313 K	323 K	333 K
Blank	657.1	659.7	735	821.5	—	—	—	—
50	317.8	390.2	446	603	50.72	40.85	39.32	26.60
100	250	289.1	318.2	444.2	61.95	56.18	41.68	45.93
150	203.5	207.3	256.5	396.3	69.03	68.58	65.10	51.76
200	182.1	180	223	320	72.29	72.71	69.65	61.05
250	150	158.5	198.8	286.5	77.17	75.97	72.95	65.12
300	125	127.2	180.1	241	80.97	80.71	75.50	70.66