Ion Exchange Resin manages perchlorate contamination.

Press Release Summary:



Amberlite® PWA2 is designed for selective removal of perchlorate, which can interfere with iodide uptake into the thyroid gland. It can be used to treat both potable and non-potable water.



Original Press Release:



Rohm And Haas Company Introduces Amberlite® PWA2 for Perchlorate Remediation



Philadelphia, PA, April 26, 2004 - Rohm and Haas Company is pleased to introduce Amberlite® PWA2 ion exchange resin, the first resin specifically designed for the selective removal of perchlorate from drinking water. According to the EPA, perchlorate has been detected in water supplies across the United States, and can interfere with iodide uptake into the thyroid gland.

In many typical municipal well contamination cases, Amberlite PWA2 resin has been shown to be the most cost effective technology solution to manage perchlorate contamination concerns. This ultra-selective product achieves the highest loading (removal) capacity for perchlorate of all available ion exchange resins, with as much as 10 times better performance versus other products. It can be used to treat both potable and non-potable water.

For more information on Amberlite PWA2 resin, or help with any other water quality problem, please contact Rohm and Haas at 1.800.RHAMBER or visit www.amberedge.com.

The Ion Exchange Resins business supplies innovative products, technologies, and services to purify drinking water and to industries where water purity is integral to successful operations.

Rohm and Haas (NYSE: ROH) is a Philadelphia-based specialty materials company, which makes products for the personal care, grocery, home and construction markets, and the electronics industry. The company has annual sales of approximately $6.4 billion (US) and operations in more than 27 countries. Additional information about Rohm and Haas may be found at www.rohmhaas.com.

CONTACTS:

Laura Hadden
Rohm and Haas Company
1-215-592-3054
LHadden@rohmhaas.com

Laura Schmidt
Ion Exchange Resins-Water Treatment
1-215-592-3735
LSchmidt@rohmhaas.com

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