Table 1: Weight loss values of various concentrations of esomeprazole in 1 M H2SO4 solution.

Concentration (ppm)Weight loss (mg cm−2)Corrosion rate (mm y−1)Surface coverage (θ)IE (%)

blank184657.1
5089317.80.507250.72
100702500.619561.95
15057203.50.690369.03
20051182.10.722972.29
250421500.771677.17
300351250.809780.97