Study of the Mechanism of the Inhibition of Zinc in 1N HCl by Phosphonium Salts

The different steps of mechanism for Zn corrosion inhibition in a 1N HCl solution with phosphonium salts Ph sub 4--y P exp + n Bu sub y , X exp -- (0 < = y < = 4) are clarified according to the nature of the substituting groups. The secondary type of inhibition, involving the reduction product...

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Bibliographic Details
Published in:Electrochimica acta 1982-02, Vol.27 (2), p.197-203
Main Authors: Troquet, M, Pageiti, J
Format: Article
Language:fre
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Summary:The different steps of mechanism for Zn corrosion inhibition in a 1N HCl solution with phosphonium salts Ph sub 4--y P exp + n Bu sub y , X exp -- (0 < = y < = 4) are clarified according to the nature of the substituting groups. The secondary type of inhibition, involving the reduction products of these salts, i.e. phosphine, does not appear when y is greater than one. In this case, the electrostatic adsorption and chemisorption are the predominant steps. 14 ref.--AA
ISSN:0013-4686