1934 Mercury Dime - thoughts on grade?

No rinsing is necessary, the acetone will evaporate quickly.

 

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The time it takes can vary depending on the extent of film, but unlike dipping, leaving it too long isn't going to ruin the coin. Rather, if the acetone becomes heavily saturated with PVC and the like, sometimes the film can be redeposited on the coin. For coins with heavy PVC, I recommend changing the acetone to avoid this. Also be sure to use a glass container; the acetone will melt plastic. You should also cover the top to keep the acetone from evaporating out. It will evaporate quickly and if it does, it will redeposit all of the junk that was on the coin. I always rinse off chemicals using distilled water, but acetone is fairly inert and will quickly evaporate off the surface of the coin itself without incident. Always use acetone in a well ventilated area.

 

It is not at all necessary to rinse acetone off with distilled water IMO. In most cases, the acetone will be purer (ionic contamination) than the distilled water.

 

Acetone works quickly and yes, use distilled water. Tap water contains certain minerals that can damage the coin.

 

Nice find,congrats! MS64 fb? May be green pvc crud on it(I'm red-green color blind so can't tell myself. If so a nice "bath" in PURE acetone will get rid of it and rinse w/DISTILLED WATER only.Best of luck.....

 

Guys, I don't think they sell pure acetone. Look on the ingredients label. There's another chemical in there. I think I recall hearing that's because acetone is tasteless and FDA wants you to gag if you try to drink it (it's for safety reasons).

 

From the MSDS for acetone from Home Depot;
CAS # Hazardous Components (Chemical Name)
3. COMPOSITION/INFORMATION ON INGREDIENTS
Concentration RTECS #
67-64-1 Acetone {2-Propanone} 100.0 % AL3150000

Acetone is not tasteless and they do not dose it with bitrex (to make it too bitter for humans to drink) like they do with some alcohols.

 

No denatonium benzoate? Are you sure?

 

The more digging I do, the less I know. However, I find it doubtful that bitrex can be added without being listed on an MSDS.

First off, it is being added to inhibit meth production rather than direct ingestion. I also found blogs saying it will not react with coins.

 

Yeah, but it's in there. For whatever the reason. Just read the ingredients label. That's all I'm pointing out to you guys.

 

http://www.wizardcoinsupply.com/pure-acetone.html

 

In some cases. Wizard and Home Depot still give no evidence of it being present.

 

Coinchemistry, the ingredients label. Come on with the ingredients label on that one. Every one says "Pure Acetone" on the front label.

 

Hopefully this week I will test a coin in Home Depot Acetone. If after a few days there is no improvement, a bath of Xylene will be used. Results to follow....