The available literature on corrosion inhibitors for application in hot acid solutions including both organic and mineral acids has been reviewed. The authors have synthesized a few organic compounds and investigated their corrosion inhibiting characteristics. The salient features obtained from weight loss, potentiodynamic polarization and hydrogen permeation have been discussed. The difference in inhibition action has been explained on the basis of their molecular structures.

Subject
Acids, Chemical compounds, Hydrogen permeation, Inhibitor performance, Derivatives, Electrochemical studies, Electrochemical parameters, Molecular structure, Fatty acids, Weight loss, Formic acid, Corrosion inhibitors, Steel
Keywords:
anil, corrosion inhibition, hydrochloric acid, formic acid, long chain fatty acid derivatives, macrocyclics, sulfuric acid, triazole
© 2004 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).
2004
Association for Materials Protection and Performance (AMPP)
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