ABSTRACT
Tetrazolium violet (TV) is a tetrazole fungicide with an important pharmaceutical intermediate and it can be used as the corrosion inhibitor in steel pickling has been analyzed by electrochemical methods. electrochemical impendence spectroscopy (EIS) shows that TV is an effective inhibitor and the inhibition efficiency raised and reached 91.0% at max when the inhibitor concentration is 10−3 M. In addition, with the decrease of temperature and the increase of corrosion inhibitor concentration, TV's inhibition efficiency goes up.
