What is this strange dried liquid on these Kennedy half dollars?

Married2Coins

@TeddyTalks said:
Wow Acetone has a really strong smell to it.

Thankfully, I poured it outside on my balcony, so it didn’t stink up the inside…

Gonna flip them and put them in a new glass container in a few hours

**Lucky your balcony is stone! **

Barberian

@TeddyTalks said:
Also interesting to note, when I picked up the glass containers after the Acetone had evaporated (I decided the easiest thing for me was to just leave the glass containers outside for a day until the Acetone was gone),

I noticed there was a thin layer of goo at the bottom of glass container —

** The glass container I put the coins in first, the goo layer was much thicker than the second glass container I used (but it still had some in it),**

So clearly the Acetone was taking off something on the surface of these coins…

Nice observation on the residue that still remains after the first dip in acetone. Nice thread and I'm glad the acetone soak worked out for your Kennedys.

TheGoonies1985

Best to cover with glass or metal lid and let the acetone do its magic. It evaporates very fast if left uncovered. If any still have that look just do another acetone bath.

Fraz

The word narcotic serves as noun or adjective, and that is the confusion.