The development of a series of low molecular weight polyacrylate scale control agents for industrial water treatment is discussed. Performance properties of homopolymers and copolymers of acrylic acid for controlling calcium carbonate, calcium sulfate and calcium phosphate deposition in alkaline systems are described along with some comparisons to phosphonates and polymer/phosphonate blends. The relationship of polymer solubility, molecular weight and composition to precipitation inhibition and particulate dispersing are discussed. Results of radiotracer experiments are presented which show the effect of changes in polymer composition on chemisorption characteristics on a variety of inorganic particulates. An aqueous gel permeation chromatographic technique is outlined that quickly and accurately measures molecular weight and molecular weight distribution of polymers. A new field test method for easily monitoring active polymer at the 1 ppm level in any aqueous system is also described.

Subject
Calcium phosphates, Test methods, Water, Precipitation (solids), Phosphonates, Molecular weight, Iron, Solubility, Polyacrylates, Particulates, Polymers, Corrosion inhibitors, Water treatment facilities
© 1984 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).
1984
Association for Materials Protection and Performance (AMPP)
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