Best way to get coins unstuck

[Pennysaved]

I was going through the junk bin at a local coin shop today and found 3 coins that were stuck together that were thrown in the junk box. The middle one definitely looks silver from the edge. However, I cannot see any details and the other 2 coins are stuck so tight that I cannot get it loose.

What is the easiest way to get them unstuck without doing any damage? My mom says to soak them in vinegar.

[Mossy]

No one has answered for nearly two hours, so I'll throw my opinion in.

Vinegar is too acidic. I'd start with warm/hot water, and stumble around from there. Alcohol, acetone, paint thinner, etc.

[slickeast]

Hot water, let em soak. Unless they are super glued together, this should do the trick.

[Delawhere Jack]

And acetone will dissolve superglue. Nail polish remover should do the trick.

[fasteddy]

man...get the good stuff 3M brand brake cleaner...it dissolves everything including the fat in your fingers so wear gloves if you have skinny fingers....

[bman]

you could also try freezing them then running under very hot water, the rapid change in temperature should make the metal expand.

[Mossy]

Speaking of cold, this one is a bit risky. Bundle the coins in a wadded up paper towel and put on a styrofoam plate or in the bottom half inch of a polysteryn cup. Put on some heavy, rubber gloves. Turn a butane cig lighter refill cylinder (or "greengas" soft pel canister) upsidedown and press against the coin to release the gas. Wait about a minute and drop the coins on something hard, like a cement floor. Most glues become very brittle when frozen like that and should shatter. Let the coins warm to room temperature before picking them up.

You could use a CO2 cylinder instead, but I'm not going to try it. Too dangerous, and the cylinders cost too much.

I don't think it's worth buying anything to do this. The coin in the middle is probably a Canadian or some other "fake silver", and, even if it is, what would it be worth? Go with the hot water first.