Sodium Hypochlorite (bleach) is widely used for bleaching purposes, and to treat water and wastewater. Since the use of elemental chlorine is being increasingly restricted by regulatory agencies, one of the prime substitutes is bleach. There are few traditional materials that are able to withstand the corrosive effects of bleach service, especially at a reasonable cost. This paper reviews the basic chemistry of bleach manufacturing and its ultimate decomposition back to salt water, and also presents the pro’s and con’s of various piping materials. Finally, it introduces a new piping material for consideration in bleach service, poly Dicyclopentadiene (DCPD).

Subject
Costs, Metallic piping, Decomposition, Water, Materials, Piping, Salts, Acidity, Fiberglass, Chlorine, Sodium hydroxide, Titanium, Resins
© 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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