发明公开
EP0791671A1 Surface treating agent for copper or copper alloy 失效
OberflächenbehandlungsmittelfürKupfer und Kupferlegierungen

Surface treating agent for copper or copper alloy
摘要:
A surface treating agent for copper and a copper alloy, comprising an aqueous solution containing an imidazole compound or a benzimidazole compound, a complexon, and iron ions. The agent forms a chemical film selectively on the surface of copper while forming no film on other metals.
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