Benzotriazole as an inhibitor of the anodic dissolution of cadmium, bismuth, and their eutectic alloy in a neutral borate solution

• A. G. Berezhnaya, V. I. Mishurov and V. V. Ekilik

Southern Federal University, ul. Zorge 7, Rostov-on-Don, 344090 Russian Federation

Abstract: The electrochemical behavior of an eutectic cadmium-bismuth alloy in borate buffer solution containing 1,2,3-benzotriazole (BTA) as an additive has been studied. The additive inhibits the cadmium and alloy dissolution to an appreciable extent. It has been shown that the experimental polarization curve of the alloy is similar to that calculated based on the additive scheme. However, the currents on the experimental curve are lower due to selective mode of cadmium dissolution from the alloy. The kinetics of passive film formation was also studied.

Keywords: bismuth, cadmium, eutectic alloy, anodic dissolution, inhibitor, benzotriazole

Int. J. Corros. Scale Inhib., 2013, 2, no. 2, 132-137 PDF (783 K)
doi: 10.17675/2305-6894-2013-2-2-132-137

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