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Title:
METHOD FOR INHIBITING PITTING CORROSION OF COPPER MEMBER
Document Type and Number:
Japanese Patent JP2012201968
Kind Code:
A
Abstract:

To effectively inhibit corrosion, particularly pitting corrosion, of a copper member by forming a coating film excellent in corrosion resistance and durability on a surface of the copper member contacting a water system.

A method for inhibiting pitting 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), to the water system contacting the copper member.


Inventors:
ISERI HAJIME
Application Number:
JP2011000070263
Publication Date:
October 22, 2012
Filing Date:
March 28, 2011
Export Citation:
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Assignee:
KURITA WATER IND LTD
International Classes:
C23F11/14
Domestic Patent References:
JPH06128767A1994-05-10
JPS5265141A1977-05-30
JPH0912521A1997-01-14
JP2002079260A2002-03-19
JPS6156286A1986-03-20
Attorney, Agent or Firm:
重野 剛