Oxygen corrosion and its inhibition by oxygen scavengers is discussed. In the process of oxygen corrosion, oxygen is electrochemically reduced at the cathode and metal is oxidized to metal ions at the anode. Inhibition of oxygen corrosion by oxygen scavengers may occur by imposing a limit on the rate of reaction at the cathode or the anode. The anode reaction may also be inhibited by oxygen depending on its concentration which causes the apparent paradox that oxygen may inhibit oxygen corrosion. Oxygen scavengers used in oil production and in boilers and their properties are also described.

Subject
Water, Corrosion rate, Hydrazine, Oxygen scavengers, Metals, Boilers, Magnetite, Passivation, Oxygen, Oxygen corrosion, Risk reduction, Chemical reactions, Anodic inhibitors
© 1989 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).
1989
Association for Materials Protection and Performance (AMPP)
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