The objective of this work was to determine which chemical structures of organic corrosion inhibitors are most responsive to enhancement of corrosion inhibition by the presence of iodide ion. The inhibiting effect of iodide and other halide ions on corrosion has been known for some time. In 1930, Walpert showed that HCl inhibited the corrosion of steel in H2SO4 by 78 per cent.1 * Numerous examples of high inhibitor efficiencies of KI, KBr and KCl are given by Putilova.2  The inhibiting effect of certain anions is related to their strong adsorption on metal surfaces.

Subject
Anions, Corrosion rate, Hydrogen evolution, Synergistic effect, Halides, Potassium, Chemical inhibition, Amines, Corrosion inhibitors, Steel, Chlorides, Isocorrosion curves, Hydrogen
© 1973 Association for Materials Protection and Performance (AMPP). All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any form or by any means (electronic, mechanical, photocopying, recording, or otherwise) without the prior written permission of AMPP. Positions and opinions advanced in this work are those of the author(s) and not necessarily those of AMPP. Responsibility for the content of the work lies solely with the author(s).
1973
Association for Materials Protection and Performance (AMPP)
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