International Journal of Corrosion / 2013 / Article / Tab 6

Research Article

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

Table 6

Impedance data and surface coverage for zinc electrode in 1.0 M HCl in absence and presence of different concentrations of Marjoram extract.

Inhibitor conc. (ppm)
Ω cm²

Ω cm²

µF cm−2
(%)

0.000.955122.30
1001.1519819.4374.10
2001.3031817.1183.50
3001.9535315.1385.60
4002.1338510.8586.30
5002.654409.5388.80

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