The dissolution and passivation of Ni in de-aerated acid solutions (0.1 N H2SO4) of acetonitrile (ACN) and N-N-dimethylformamide (DMF) has been studied by d.c. and a.c. techniques. Results obtained indicated that the anodic dissolution of Ni in solutions of ACN and DMF is affected by the adsorption of solvent at the metallic interface, while the passivation process is affected by the water content. The minimum amount of water content to observe passivity in water-ACN mixtures is 11% by weight; in water-DMF mixtures Ni does not passivate even in presence of high water content (up to 35% by weight). © 1993.
Anodic dissolution and passivation of Ni in acid organic aprotic solvents / L., Ercolano; Monetta, Tullio; Bellucci, Francesco. - In: CORROSION SCIENCE. - ISSN 0010-938X. - STAMPA. - 35:(1993), pp. 161-167. [10.1016/0010-938X(93)90146-8]
Anodic dissolution and passivation of Ni in acid organic aprotic solvents
MONETTA, tullio;BELLUCCI, FRANCESCO
1993
Abstract
The dissolution and passivation of Ni in de-aerated acid solutions (0.1 N H2SO4) of acetonitrile (ACN) and N-N-dimethylformamide (DMF) has been studied by d.c. and a.c. techniques. Results obtained indicated that the anodic dissolution of Ni in solutions of ACN and DMF is affected by the adsorption of solvent at the metallic interface, while the passivation process is affected by the water content. The minimum amount of water content to observe passivity in water-ACN mixtures is 11% by weight; in water-DMF mixtures Ni does not passivate even in presence of high water content (up to 35% by weight). © 1993.| File | Dimensione | Formato | |
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