High levels of chlorine under upset conditions have been shown to be aggressive to copper and brass alloys protected with the common azoles used in current cooling water treatment programs. Little is known about bromine chemistry under similar conditions. Preventing the attack of copper and brass under upset conditions will reduce corrosion rates and, consequently, prolong equipment life.

This work shows that dimethylhydantoin is capable of reducing the corrosion rate caused by chlorine upsets on tolyltriazole inhibited brass. Bromine is also shown to be less aggressive than chlorine toward tolyltriazole treated surfaces.

Subject
Bromine, Water, Corrosion rate, Halogens, Protective films, Solubility, Weight loss coupons, Film formation, Corrosion inhibitors, Chlorine, Corrosion protection, Copper, Brass
© 1987 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).
1987
Association for Materials Protection and Performance (AMPP)
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