METHOD FOR INHIBITING CORROSION OF COPPER MEMBER AND CORROSION INHIBITOR

PROBLEM TO BE SOLVED: To effectively inhibit corrosion of a copper member such as a copper tube contacting a water system, e.g. a cooling water system, by using a small amount of chemical.SOLUTION: A method for inhibiting corrosion of the copper member comprises adding a compound represented by form...

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Bibliographische Detailangaben
1. Verfasser:	ISERI HAJIME
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMICAL SURFACE TREATMENT CHEMISTRY COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING MATERIAL WITH METALLIC MATERIAL COATING METALLIC MATERIAL DIFFUSION TREATMENT OF METALLIC MATERIAL INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL METALLURGY MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLICMATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASSC23 AND AT LEAST ONEPROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25 NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To effectively inhibit corrosion of a copper member such as a copper tube contacting a water system, e.g. a cooling water system, by using a small amount of chemical.SOLUTION: A method for inhibiting corrosion of the copper member comprises adding a compound represented by formula (1) (wherein R is alkyl group or alkenyl group; and X, Y and Z are each independently hydrogen atom, alkyl group, benzyl group, hydroxyalkyl group or carboxyalkyl group, provided that the hydroxyalkyl group or the carboxyalkyl group may form a salt) and an azole corrosion inhibitor for copper to the water system contacting the copper member.