Fifty years ago I watched my Dad etch sterling (925) and coin ((90%)
silver using Nitric Acid that he bought at the local drug store. He
made an example of what this acid would do to me if I should ever get
into it by dissolving a silver dime in it. Now that I have retired I
have decided to try my hand at etching silver items. I bought a
bottle of 96.9 pure Nitric Acid but it will not dissolved silver. So
I bought a bottle of 99.5 white fuming nitric acid hoping this
wrought do the job, it only turns silver coins black. What type of
nitric acid would dissolve a silver coin and where can I find it,
Thanks.
Larry D. Morrill