duke0fdank
New member
The dry ice is bubbling CO2 through the ethanol and saturates it.
-50C is a minimum and when chilling ethanol directly with dry ice, the temperature is typically closer to -70C. Unless the column of material is at -70C or below, the temperature won't stay that low once the flow starts.
Attached is a chart showing dielectric constant of ethanol at temperature.
i understand but Im talking about making a co2-expanded ethanol. i could get it to -70c and saturate with co2, then add the material then seal the vessel if necessary. this patent asserts this could work at atmospheric pressure but im not entirely convinced but even not it will still be relatively low pressure (<1000psi) which i can handle.
it should also 2x the volume of the ethanol which saves expensive ethanol
and under the right conditions, it could be better than straight ethanol for purity