topic 0932
Reducing agents for Electroless Copper deposition
Quickstart:
Electroless copper plating does not require electricity. Rather, it is a sort of spring-loaded plating; the solution contains not only copper dissolved into the solution as ions, but a reducing agent which will react with those copper ions, pulling electrons out of them and "reducing" them to copper metal.
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Q. In the Metal Finishing Guidebook Directory (1997), in the electroless plating chapter (page 412), J.Henry gives explanation about electroless copper (page 419). Then the author talks about Quadrol reduced bath which are faster than the conventional baths and they do not use formaldehyde.
The question is : What is Quadrol or at least what is its scientific name so I can do some bibliographic research about.
If they do not use formaldehyde what is the reducing agent?
Thank you in advance
Sincerely,
Fareskaram Antoine- France
1998
A. Quadrol is ethylenediamine.
Steve WilcoxTecumseh, Michigan
by Sha, Wu, & Keong
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A. Yes,
Quadrol is a ethylenediamine but it has so many variances to its name. Truly, the only proper way to find this chemical is by using its chemical abstract (CAS #102-60-3). I am the air emissions specialist at my facility and in order for me to determine the emissions from our plating tanks, I needed some background information on this chemical (i.e., boiling point, vapor pressure, etc.).
I had luck finding it in The Merck Index ⇦ on eBay or Amazon affil links] (11th edition) under the name "Entprol". I also know that one of the manufacturers of Quadrol is BASF Corporation in Germany. The chemical family Quadrol belongs to is the propoxylated amine family. I hope this helps out your research.
Tamera Barker- Lufkin, Texas
2000
A. Quadrol is a trade name for ethylene diamine adducted with 4 moles of propylene oxide.
Jay Martin- E.Hartford, Connecticut
2001
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