The Inhibition Effect of Potassium Iodide on the Corrosion of Pure Iron in Sulphuric Acid

Table 1

Corrosion parameters for pure iron in aqueous solution of 0.5 M H₂SO₄ in presence and absence of different concentrations of KI at 303 K for 2 h.

	(mol/L)	(mg·cm^−2·h^−1)	IE (%)
H2SO4	0.5	1.60383	—
KI		0.28593	82.17
		0.10956	93.16
		0.07787	95.15
		0.05445	96.60
		0.04169	97.11
		0.03986	97.51