I agree steel wool, but if you want to get good silver to make silver nitrate then just plate it out, that@s the easiest.
Assuming it's small scale then just rig up a rechargeable battery around 5 to 6 volts with silver wire for the anode and a carbon rod cathode.
PIC - a company I worked for used to be a member of PIC, we installed both Electro plating units and wire wool systems. With steel or wire wool systems the resulting slugde isn't very pure usually often about 60% silver, whereas plated silver will be over 98% pure, often far higher.
Last edited by Ian Grant; 02-24-2008 at 09:52 AM. Click to view previous post history.
Reason: add PIC