[R-390] Acetone solvent

[Robert Moses]

That is like saying 'clean ether does not form peroxides'. Traditional
does not equal good science. Always test experimentally. High purity
ketones do polymerize.

On 05/17/2014 06:12 AM, Gordon Hayward wrote:
>> A word on acetone: it polymerizes and leaves an organic residue. If you
>> want a clean surface wash off the acetone with distilled water and then
>> bake off the water film after shaking out the drops that you are able
>> to. (Baking would be at about 240 F (120 - 140 C ) for a day or 2. I am
>> assuming that you are talking about the 2 larger metal tuning knobs.)
>> Before baking non metal parts test to be sure that they will not be
>> damaged.
> I disagree.  Clean acetone doesn't polymerize and doesn't leave residue.
> A long time ago we used to dry lab glassware with acetone because it forms
> a low boiling azeotrope with water. That said, now we avoid releasing VOC's.
>
> You need to be careful with acetone because it dissolves a lot of plastics
> and can easily ruin nice surfaces. 2-propanol is a lot less aggressive.
> Both are flammable.
>
> Cheers, Gord VE3EOS
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