INVESTIGATION OF SOME COMPOSITIONS OF THE “SOLING” SERIES AS CORROSION INHIBITORS FOR LOW-CARBON STEEL IN ACIDIC MEDIA

Abstract

The inhibiting effect of some compositions of «Soling» series on low-carbon steel St3 in solutions of 5% and 15% HCl and 5% H2SO4  has been studied by the methods of polarization and gravimetric measurements. The protective action and the coefficient of inhibition of the corrosion process are calculated, the slopes of the Tafel sections in the cathode and anode regions of the polarization curves have been calculated. The influence of inhibitors on the kinetics of partial electrochemical reactions has been determined. The state of the surface of the samples has been estimated using micrographs. The high efficiency of inhibitors in acidic media has been shown.