Effect of Temperature on the Corrosion Inhibition of Trans-4-Hydroxy-4^′-Stilbazole on Mild Steel in HCl Solution

Table 3

Effect of concentration of trans-4-hydroxy-4′-stilbazole on surface coverage for mild steel in 1 M HCl at various temperatures.

	Temperature/K
	303	313	323
Concentration of inhibitor	Surface coverage 𝜃	Surface coverage 𝜃	Surface coverage 𝜃
1 M HCl + 1 × 10^−6M	0.05	0.037	0.022
1 M HCl + 1 × 10^−5M	0.26	0.14	0.103
1 M HCl + 1 × 10^−4M	0.80	0.74	0.534
1 M HCl + 1 × 10^−3M	0.94	0.92	0.884