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Sound technical content, curated with aloha by
Ted Mooney, P.E. RET
Pine Beach, NJ

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Cyanide copper brighteners

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Q. Hello...

I am a new electroplater. Also I am a chemist. So I need some information about cyanide copper brighteners. What do I use (which chemicals) for more bright plating ? Please, don't say me: "choose what do you want". I LOOK FORWARD TO YOUR ANSWERS.

Sincerely...

Alaattin Tuna
- Turkey
2003

A. Past history of brightening cyanide copper deposits includes the use of tartrates (Rochelle Salts) ⇦ this on eBay or Amazon [affil links] as well as the additions of selenium and arsenic compounds. There are also a variety of proprietary materials available that use organic compounds or a combination of metallic and organic compounds

Gene Packman
process supplier - Great Neck, New York

"The Properties of Electrodeposited Metals and Alloys"
by William Safranek

on eBay or

AbeBooks

or Amazon

(affil links)

A. Hi, Alaattin. Safranek's "The Properties of Electrodeposited Metals and Alloys" ⇨
recognizes not only Rochelle Salts, but a proprietary selenium-based material which acts as a brightener when applied with periodic reverse current. It does not recognize any other brighteners for cyanide copper baths.

Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey

[editor appended this entry to this thread which already addresses it in lieu of spawning a duplicative thread]
Q. Sir, I am a new acid copper brightener consumer so I want the brightener and leveler which is used in it. Please give me a guideline which brightener and leveler must be used.

Thank you.

FAIZAN AHSAAN
TRADERS - Pakistan
March 7, 2012

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