The Inhibitory Properties of the Ambroxol Derivative on the Corrosion of Mild Steel in Hydrochloric Acid Medium

Table 2

The results of the electrochemical measurement of the corrosion rates.

(ppm)	(mV)	(mV/dec)	(mV/dec)	(ohm·cm^2)	(%)	(mA/cm^2)	(%)
0	−437	85.4	−119.2	187	—	0.611	—
3.2	−424	84.5	−126.0	240	21.7	0.486	20.5
16	−417	76.2	−128.6	334	43.8	0.330	46.0
80	−412	67.8	−136.9	535	65.0	0.195	68.0
400	−404	61.5	−144.3	1504	87.5	0.066	89.2