International Journal of Corrosion / 2013 / Article / Tab 1

Research Article

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

Table 1

Corrosion parameters for zinc in aqueous solution of 1.0 M HCl in absence and presence of different concentrations of marjoram extract from weight loss measurements at 30°C for 1/2 h.

Inhibitor concentration (ppm)Weight loss (mg dm−2)CR (mg dm−2 h−1) IE (%)

Blank843252.90
10034198.0061.30
20024373.6071.00
30018352.4079.30
4009828.0088.90
5006921.2091.80

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