NAC	N-acetylcysteine
PDP	potentiodynamic polarization
EIS	electrochemical impedance spectroscopy
OCP	open circuit potential
icorr	corrosion current density
Ecorr	corrosion potential
Rp	polarization resistance
CR	corrosion rate
ba, bc	anodic and cathodic Tafel slopes
Rct	charge transfer resistance
Cdl	double-layer capacitance
Rs	solution resistance
IE%	inhibition efficiency
K	adsorption–desorption constant
$\Delta G_{ads}^o$	standard free adsorption energy
θ	degree of surface coverage
χ	electronegativity
ε	chemical potential
η	hardness
σ	softness
ω	electrophilicity index
ω−	electrodonating power
ω+	electroaccepting power
ΔN	fraction of the transferred electron