Copper corrosion rates were determined under conditions of:

  • Hypochlorination

  • Tolyltriazole dosing

  • Combined dosing of hypochlorite and tolyltriazole

All work was performed in a 34 l/min (9 gpm) recirculated packed column, simulating in all respects an open recirculating cooling tower system. Hypochlorite will "destroy" tolyltriazole but copper corrosion rates remain low as long as some tolyltriazole is present. Air stripping rates for hypochlorite were also determined. There was no air stripping of tolyltriazole. Degradation products from the tolyltriazole/hypochlorite reaction are apparently air stripped.

Subject
Water, Corrosion rate, Chloride ion concentration, Chlorination, Odor, Stripping, Sodium hypochlorite, Liquids, Chlorine, Hypochlorite, Copper, Brass, Cooling towers
© 1982 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).
1982
Association for Materials Protection and Performance (AMPP)
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