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Thread 121/04

Cyanide-free brass bath

I need information where I can find formula for cyanide-free brass bath. Thank you.

Axel MASSA
- Cannes, FRANCE
publicly reply to Axel MASSA

To my knowledge all such formulations are proprietary. But if any reader wants to refer you to a published document that would be great.

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

Recipe for tartarate brass plating bath:
CuCO3-------12,9gm
ZnO---------12,4gm
KNaC4H4O6---260gm
NaOH--------120 gm
H2O---------1 lit.
2 A/dm2.pH 13,2-13,5.35-45 C.anode=brass

Goran Budija
- Cerovski vrh Croatia
publicly reply to Goran Budija

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