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topic 6507

Chemical formula or substitute for benzotriazole


A discussion started in 2000 but continuing through 2019

2000

Q. You suggested using benzotriazole for preventing copper from oxidation and also increasing its shine. Can you give its chemical formula as it is not readily available in the market, else give its substitute.?

vaibhav sondhi
cables - Delhi, India.


simultaneous 2000

Our Laser HFP is a triazole based copper anti-tarnish that is available for export.

Dan Brewer
chemical process supplier - Gurnee, Illinois

----
Ed. note: most metal finishing suppliers offer corrosion inhibitors for copper based on benzotriazole.


2000

But benzotriazole is readily available; ask your chemical supplier for an anti-tarnish. Citric acid is also used for this purpose.

James Totter
James Totter, CEF
- Tallahassee, Florida



December 15, 2018 -- this entry appended to this thread by editor in lieu of spawning a duplicative thread
wikipedia
Benzotriazole

Q. Sir,
Can anybody suggest a cheap substitute for copper inhibitor benzotriazole?

akash sharma
- ajmer, rajastha india


December 2018

A. Hi Akash. We added your question to a thread where James proposes citric acid as a possible substitute. It may be a satisfactory substitute in some ways for some applications, but will be wholly unsatisfactory for others. Please get back to us after you test it. Good luck.

Regards,

pic of Ted Mooney
Ted Mooney, P.E. RET
finishing.com
Pine Beach, New Jersey
Striving to live "Aloha"


January 7, 2019

A. Tolyltriazole is about as effective. Sometimes it is a little more expensive, sometimes a little less expensive. There is no cheap effective substitute. But if you want something cheap and accept a significant reduction in performance you could try triethanolamine or a similar compound.

tom_rochester
Tom Rochester
Plating Systems & Technologies, Inc.  
supporting advertiser
Jackson, Michigan, USA
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