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Cycles thru suppliers of non-cyanide brass plating processes --> |
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Letter 24053
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James Totter,
CEF |
I don't know of an electroless copper bath based on pyrophosphate, but that isn't to say it doesn't exist. However, all pyrophosphate baths should be run at less than 60C otherwise the pyrophosphate hydrolyses and dissociates to orthophosphate. Hope this helps you.
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Trevor Crichton |
Hello,
I noticed that there was a mistake in my original letter. I meant electrolytic copper bath, not electroless. Sorry.
Mia Kumpumäki
University of Oulu - Oulu, Finland
Dear colleague, if you support pH 9-10 and the temperature 40-50 C, you may use this bath for ages...
Vladimir Krasikov
- St.Petersburg, Russia

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