Maintaining polymeric inhibitor/dispersant levels in cooling water is critical to the success of cooling water treatment programs to control deposition and corrosion. A colorimetric method has been developed for the quantification of polymer concentrations in cooling waters. Cationic dye solutions, stabilized in mixed solvent systems, are employed to interact with negatively charged polyelectrolytes and produce new species that are detectable by visible spectroscopy. This simple analytical method overcomes interferences and is ideal for on-site testing. This paper presents the methodology and case studies.

Subject
Test methods, Water, Materials, Absorbance, Calibration, Solvents, Refineries, Polymers, Solutions, Reagents, Corrosion inhibitors, Cooling water, Samples
Keywords:
cooling water, scale, fouling, polymer, inert, active, monitor, tag, spectroscopy, metachromasy
© 2001 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).
2001
Association for Materials Protection and Performance (AMPP)
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