Chemical Etchants
Revision as of 21:13, 19 June 2006 by 65.107.212.130 (talk)
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Ferric Chloride
Ammonium Persulfate
Sodium Persulfate
More environmentally friendly than ferric chloride. Can monitor the etching as initially clear new etchant solution turns blue from the copper ions.
Disposal procedures
- Kepro Circuit Systems Removal of Copper and Persulfate from
Spent Sodium Persulfate Etchant by Precipitation
External Links
- Ferric Chloride vs. Ammonium Persulfate and other etching chemicals.
