VG is a little bit more polar than PG. VG has two -OH groups and two carbon atoms, PG also has two -OH groups but three carbon atoms.
Ethanol is even less polar than PG, it has one -OH group and two carbon atoms. (Water is more polar than all of them).
So in theory sugars - that are pretty polar - should have lower solubility in PG than in VG (and even less in ethanol) and therefore PG should extract less sugar from tobacco than VG.
However, I don't know if the difference in solubility between PG and VG is large enough for us to make a difference.
A mixture (eg 50/50) PG and ethanol in theory should extract even less sugars.
For my next tests I will go for a pure ethanol extraction ( as suggested by Bunnykiller and Str8vision) and a 50/50 PG/ethanol mixture.
Will take a couple of weeks to find out how it works though as I will steep (thanks Bunnykiller and Str8vision for the clarification on terms!) at room temeprature.
Str8vision was so kind to post his experience with various extractions in this thread:
http://www.e-cigarette-forum.com/fo...est-extraction-method-minimise-coil-gunk.html
It's definitely worth a read!![]()
yes, it is what i thought according to my feelings. thank you for putting it in more technical terms. i appreciate that as you're a chemist, you can explain things in a more scientific and chemical way.
i'll be waiting for the results of your experiments and in the meantime i will look into those links you gave me.
you know what? we'll win those battles, whatever it takes!