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topic 1713

Gold bath brightener


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


(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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