Effect of IFKhAN-92 inhibitor on scale removal during sulfuric acid pickling of steel

• Ya. G. Avdeev¹, I. G. Gorichev² and А. Yu. Luchkin²

¹ A. N. Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, Leninskii pr. 31, Moscow, 119071 Russian Federation
² Moscow State Pedagogical University, ul. Malaya Pirogovskaya 1, bldg. 1, Moscow, 119882 Russian Federation

Abstract: An integrated study of the effect of IFKhAN-92 on steel pickling in sulfuric acid solutions has been carried out. The inhibitor studied significantly reduces the corrosion rate of the metal but does not hinder the scale removal. It has been shown that the electrochemical component of the scale pickling process is described by Erofeev’s equation of heterogeneous kinetics.

Keywords: acid corrosion, corrosion inhibitors, acidic steel pickling, scale removal, iron oxides

Int. J. Corros. Scale Inhib., 2012, 1, no. 1, 26-37 PDF (997 K)
doi: 10.17675/2305-6894-2012-1-1-026-037

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