Sodium tungstate was examined as corrosion inhibitors for carbon steel in 3.5 % NaCl solution using potentiodynamic
polarization and electrochemical impedance spectroscopy methods. The inhibition efficiencies obtained from all methods
employed are in good agreement with each other. The results obtained revealed that Sodium tungstate inhibits the
corrosion of carbon steel in the investigated corrosive medium and the inhibition efficiency reached to81.9 %.
Polarization curves reveal that Sodium tungstate can be classified as mixed inhibitor type.