The inhibition efficiency of organic compounds is dependent on many factors, some of which include the molecular size, charge density, number of adsorption sites, and mode of interaction between the inhibitor and the surface. Adsorption at surfaces is linked predominantly to the electronic structure of the inhibitor molecules, and it is well known that slight changes in the chemistry of an inhibitor can instigate dramatic changes on its efficacy.

Many different forms of quantitative structure activity relationships (QSAR’s) have been developed to describe the efficacy of corrosion inhibitors in various media. The QSAR approach is becoming more desirable for varied reasons - in addition to prediction of corrosion inhibition properties, and attending to current environmental legislations requiring the use of less toxic water treatments.

Subject
Thermodynamics, Inhibitor performance, Correlation, Toxicity, Derivatives, Adsorption, Surfactants, Molecular structure, Constants, Chemical inhibition, Corrosion modeling, Inhibition efficiency, Corrosion inhibitors
Keywords:
Inhibition efficiency, organic inhibitors, modelling inhibition, Traube’s rule, Hansch correlation, LFER principle, adsorption, QSAR, toxicity predictions
© 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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