International Journal of Corrosion / 2013 / Article / Tab 3

Research Article

Inhibition Behaviour of Some Isonicotinic Acid Hydrazides on the Corrosion of Mild Steel in Hydrochloric Acid Solution

Table 3

Thermodynamic parameters for adsorption of INIMH and INPMH on MS in 0.5 M HCl at different temperatures.

Inhibitor (°C) (L mol−1) (kJ mol−1) (kJ mol−1) (J mol−1 K−1)

INIMH300.9958928.57−33.04
400.9908474.57−33.990.5297.339
500.9907812.50−34.86
600.9947575.76−35.85

INPMH300.9958695.65−32.97
400.9908196.72−33.910.5187.344
500.9907575.75−34.78
600.9947407.40−35.79

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