At 01:59 PM 5/31/2005 -0700, you wrote: >On 5/31/05, Debbie wrote: > > I just use a large plastic photographic tray & conc FeCl3. Rock it > gently back > > & forth by hand - takes ~40 minutes @ room temp. Wear rubber gloves! > Debbie. > >Yes, wear gloves. I got that stuff in a small cut on my finger once, ouch. :-( >I have tried hair blow driers, but that doesnt seem to work too well. >Best result I've had was floating the whole container in a larger >container filled with hot water. It also helps with spills. >- Ben Last time I did it, I nuked the whole (plastic) container to get the temperature up. In an old microwave not used for food, of course, though I don't think the ferric chloride is all that bad for you (tastes terrible) unless you ingest enough to get iron poisoning (liver damage, death etc.). Best regards, Spehro Pefhany --"it's the network..." "The Journey is the reward" speff@interlog.com Info for manufacturers: http://www.trexon.com Embedded software/hardware/analog Info for designers: http://www.speff.com ->> Inexpensive test equipment & parts http://search.ebay.com/_W0QQsassZspeff -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist