Halogen Resistant Azole (HRA) – Copper Corrosion Inhibitor
- Inhibits corrosion of copper, admiralty brass, and other copper alloys
- Product is compatible with oxidizing biocides
- Compatible with all other Veolia treatment programs
- Eliminates halogenated azole odor
Inhibitor AZ8104 is a unique azole chemistry used for the inhibition of copper and copper alloy heat exchanger surfaces. This material is used to establish a protective corrosion inhibitor film on the metal surface. Inhibitor AZ8104 is unique because it is compatible with oxidizing biocides. This makes it a good choice for cooling systems where chlorine and/or bromine are used to control microbiological activity. Indirectly, it also reduces the corrosion of steel surfaces within a given cooling system. This occurs if the steel corrosion is a result of a galvanic reaction between the steel surface and the products of copper corrosion which have been deposited on the steel. Figure 1 demonstrates how Inhibitor AZ8104 can improve copper and copper alloy corrosion rates in the presence of oxidizing biocides.
Treatment and Feeding Requirements
Dosage – Proper treatment levels of Inhibitor AZ8104 depend on many factors, such as corrosion load and conditions particular to a given installation. This product is to be used in accordance with control procedures Veolia establishes for a specific application.
Feed point – Inhibitor AZ8104 should be fed at a point in the cooling water where turbulence, flow pattern, etc. will ensure good mixing of the product with the water to be treated.
Figure 1: Improved corrosion rate results experienced with HRA under shot-feed chlorination. [TTA fed from May 7th until May 20th, equal actives of HRA fed for the rest of the time period.]
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Dilution – Inhibitor AZ8104 has to be fed from the shipping container directly.
Feed Equipment – Stainless steel, polypropylene, polyethylene, Teflon, and Hypalon tanks, pumps and piping are compatible with this product. (Teflon is a registered trademark of The Chemours Company.)
Physical properties of Inhibitor AZ8104 are shown on the Material Safety Data Sheet, a copy of which is available on request.
Inhibitor AZ8104 is available in a wide variety of containers and delivery methods. Contact your Veolia representative for details or visit us at our website.
WATER TECHNOLOGIES
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Inhibitor AZ8104
Protect Inhibitor AZ8104 from freezing. If frozen during shipping or storage, warm and mix completely to ensure homogeneity.
A Material Safety Data Sheet containing detailed information about this product is available upon request.
Veolia Water Technologies
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www.veoliawatertechnologies.com
