In recent years advances have been made in the development of low toxicity corrosion inhibitors for cooling water systems. In particular the improvements in polymer technology have extended the capabilities of phosphate based inhibitors.

The effects of water parameters such as pH, calcium concentration, chloride concentration, level of soluble iron and suspended solids on the performance of phosphate based inhibitors have been studied using laboratory rig tests. The investigation indicates that inhibitors based on phosphate are now approaching the performance of the more toxic materials such as zinc chromate.

Subject
Calcium phosphates, Water, Corrosion rate, Suspended solids, Iron, Calcium, Acidity, Polymers, Phosphates, Corrosion inhibitors, Steel, Upset, Hardness
© 1986 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).
1986
Association for Materials Protection and Performance (AMPP)
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