Kinetics of Inhibition of Aluminum Corrosion in Hydrogen Chloride Electrolytes with Binary Salt Mixt
12.09.2008 г.

Kinetics of Inhibition of Aluminum Corrosion in Hydrogen Chloride Electrolytes with Binary Salt Mixtures

O. I. Bartenevaa and V. V. Bartenevb

 

a Research Institute of Physical and Organic Chemistry,
pr. Stachki 194/2, Rostov-on-Don, 344090 Russia

b Rostov State University, ul. Bol’shaya Sadovaya 105, Rostov-on-Don, 344007 Russia

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Received May 19, 2005

 

Abstract — The kinetics of inhibition of aluminum corrosion with SnCl2 , CdCl2 , PbCl2 , and their equimolar binary mixtures was studied under contact exchange conditions. Prerequisites for synergism in these mixtures were determined. The parameter of mutual influence of the components in the mixture was formally separated into the constituents associated with changes in the aluminum surface coverage with the contact deposit, s, and in the free corrosion potential of aluminum, frame0. In the mixtures studied, s > 1, while frame1 < 1; however, the overall effect is synergism because s > 1/frame2.

 

PACS numbers: 82.45.Qr, 81.15.Pq

DOI: 10.1134/S0033173206050080