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topic 1713

Gold bath brightener


(1998)

I am making a brightener for a decorative gold bath, do I want to use cobalt sulfate heptahydrate or cobalt sulfate mono-hydrate?

Jerry Hammie
GPEAA, Inc. - Naples, FL 34109


(1998)

(I am sorry. English not perfect.....

Gold plating is very kind of bath. Generally brightnner is cobalt, cadimum, indum etc..,

The concentration of brightnner is usually very low include.

( acid type : 0.5g/l - 1g/l)

EDTA 2Na is good low current part.( and as Brightnner react). Organnic brightnner is not yet.

Welcome to Korea 2002 world cup games.....

Thank you

Kyuong min, KIm
platech - suwon( 2002 Worldcup game state



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