I do a lot of copper etching and have recently learned how
relatively low tech, silver etching is as well. At the center where I
learned, the instructor used the diluted Nitirc acid that Rio sells.
By the time I pay almost $20 for a pint and then pay $20 to $30 (at
least that's what they state in the catalog) for hazardous shipping,
I really can't afford to do the process. Not that I particularly want
to deal with diluting concentrated Nitric Acid, but as a former
laboratory worker I know how to do it and I know that a large bottle
of concentrated is only $24 at the local chemical distributor (picked
I understand that I need some sort of permit to prove to homeland
security that I'm not making bombs with it to be able to buy it. Does
any one know the process? The Homeland Security web site seems to be
silent on this issue (or the info is well hidden).
Also, is there a reasonable source for diluted nitric in, or near
I understand that etching silver can be done w/ ferric nitrate, but
have heard that there is the same Homeland security issue with this
stuff as well.
Any info on etching silver on a relatively small and economical
scale would be greatly appreciated.
the Eclectic Metalsmith