njl - 1-3-2021 at 10:01
I got some paint/varnish stripper (Savogran SuperStrip) that is made up mostly of dimethyl carbonate and 1,3 dioxolane. What is the best way to
separate these compounds? If I can get good separation, I think I will use some dioxolane to make somewhat pure ethylene glycol. I want to use the
dimethylcarbonate as a solvent and to investigate its reaction with boron compounds. Would it be possible to use a salt to separate the layers? Both
compounds have almost identical densities so that seems unlikely. It might be possible to do a fractional freeze where dimethylcarbonate freezes at
~2-4 C while dioxolane freezes at -90 C.
Triflic Acid - 1-3-2021 at 10:15
They gave decently different boiling points, 90C for the dimethyl carbonate and 75C for the dioxolane. Fractional dist should separate them. If you
have the carbonate, you have to do a Grignard reaction with it 
The freezing
thing might work, but it would be really bad separation.