Betzdearborn, Inc.

Other

Longchun Cheng

Kim A Whitaker

Michael A Cady

Sydia B Anderson

William C Ehrhardt

Dawn Stasney

Method and composition for inhibiting corrosion in aqueous systems

Non-halogen substituted, nitrogen containing, aromatic compounds are disclosed which are effective copper corrosion inhibitors in aqueous systems being treated with a halogen biocide. The materials of the present invention exhibit copper corrosion inhibition comparable to tolyltriazole in the absence of halogen, copper corrosion rates of less than about 2.5 mills per year in aqueous systems where halogen is present; and do not exhibit a detrimental effect on halogen demand in an aqueous system being treated.

Halogen resistant copper corrosion inhibitors

A method for controlling corrosion of metals, particularly ferrous-based metals in contact with aqueous systems is disclosed, which includes treating industrial waters with a tetrazolium salt of the general formula:

Inhibition of corrosion in aqueous systems

The use of halo-benzotriazoles as corrosion inhibitors in aqueous systems is disclosed. Specific isomers of chloro-methylbenzotriazole were found to be more effective corrosion inhibitors than tolyltriazole in the presence of chlorine.

Methods of inhibiting corrosion using isomers of

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Hopewell Township, NJ, United States of America

Longchun Cheng