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ATR characterisation of synergistic corrosion inhibition of mild steel surfaces by cerium salicylate

journal contribution
posted on 01.11.2002, 00:00 authored by Maria ForsythMaria Forsyth, C Forsyth, K Wilson, T Behrsing, G Deacon
The nature of deposits on mild steel surfaces formed by exposure to corrosive and inhibiting solutions has been examined by attenuated total reflectance spectroscopy. For cerium-based inhibitors, e.g. CeCl3 the formation of cerium-containing coatings was detected whilst the cerium carboxylate Ce(sal)3 (sal=salicylate), which combines the Ce3+ with the known organic inhibitor sal, was shown to involve substantial deposition of both cerium and a salicylate species. These results, combined with corrosion inhibition data for the respective inhibitor compounds clearly indicate a synergistic corrosion mechanism for Ce(sal)3 which underpins the improved performance of this corrosion inhibitor in comparison to the individual components (i.e. Na(sal) or CeCl3).

History

Journal

Corrosion science

Volume

44

Issue

11

Pagination

2651 - 2656

Publisher

Elsevier

Location

Amsterdam, The Netherlands

ISSN

0010-938X

eISSN

1879-0496

Language

eng

Publication classification

C1.1 Refereed article in a scholarly journal

Copyright notice

2002, Elsevier Science Ltd.