-- The Home Page of the Finishing Industry
Serious Education & the most FUN
you can have in metal finishing smiley

No popups, spam, registration or passwords
on this site
current topics
topic 15889

Copper oxidation inhibitor

A discussion started in 2002 but continuing through 2017


Q. Dear Sir / Madam,

We are manufacturers of copper wires and strips by cold rolling operation for use in electrical industry and for further insulation. At the time of production, our strips are bright and have a mirror finish. This luster fades away and the surface gradually becomes tarnished. At present we are not using any copper brightener or oxidation inhibitor. (We use continuous cast copper rod electrolytic grade and have no acid picking required in our process). Please suggest the suitable chemical treatment that we should adopt for a long lasting luster and also kindly suggest its method of application.


Vimlesh Jaju
Vimlesh Industries Private Limited - Sonepat, Haryana, INDIA


A. Hi Vimlesh. Read up on benzotriazole, which can probably be applied by simple immersion. Good luck.

Ted Mooney, Teds signature
Ted Mooney, P.E.
Pine Beach, New Jersey


Q. I am planning to start the wire drawing setup for copper wire, which type of oxidation inhibitor should I use. Please suggest me.



Neetu Mahaldar
- Gurgaon, Haryana, India

October 11, 2017

A. Hi

As a good background to the chemistry of copper oxidation/tarnishing please see....

This covers Benzotriazole but more importantly I think it gives a good overview on the mechanisms of copper corrosion and tarnishing.

I know this is an old thread but we all stumble into old threads via Google so I believe it is still worth posting.

Jon Light
- Wexford, Ireland

If you have a question in mind which seems off topic, please Search the Site

ADD a Comment to THIS thread START a NEW threadView CURRENT TOPICS

Disclaimer: It's not possible to diagnose a finishing problem or the hazards of an operation via these pages. All information presented is for general reference and does not represent a professional opinion nor the policy of an author's employer. The internet is largely anonymous & unvetted; some names may be fictitious and some recommendations may be deliberately harmful.

  If you need a product/service, please check these Directories:

JobshopsCapital Equip. & Install'nChemicals & Consumables Consult'g, Train'g, SoftwareEnvironmental ComplianceTesting Svcs. & Devices

©1995-2018, Inc., Pine Beach, NJ   -   About   -  Privacy Policy
How Google uses data when you visit this site.