International Journal of Corrosion / 2013 / Article / Tab 4

Research Article

Marjoram Extract as Corrosion Inhibitor for Dissolution of Zinc in 1.0 M HCl

Table 4

Effect of temperature on the corrosion parameters of zinc in 1.0 M HCl and 1.0 M HCl + 500 ppm of marjoram extract.

System (K) (mV SCE) (mA cm−2) IE (%)

1.0 M HCl303−9962.41
313−10022.81
323−10013.96
333−9994.73
343−10015.58

1.0 M HCl + 500 ppm inhibitor303−9740.1892.50
313−9790.2591.10
323−9850.3890.40
333−9900.4989.60
343−9900.6688.20

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