njl
National Hazard
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Registered: 26-11-2019
Location: under the sycamore tree
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Separation of dimethylcarbonate from 1,3 dioxolane
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.
Reflux condenser?? I barely know her!
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Triflic Acid
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Registered: 27-9-2020
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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.
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