i'm wondering why glycerine and propyleneglycol are used as solvents for e- liquids. of course, they are approved for consumation, they steam!
do you know which temperature is reached in the e cigarettes allowing evaporation?
thanks in advance,
patrick schimpl
Hello Patrick,
First of all, glycerine and propyleneglycols are used in e-cigarettes because they are miscible with water - it is necessary to create an aerosol (glycerine and propyleneglycol droplets in water vapour). The temperature in e-cigarettes varies within 100 - 250 °C. Within this range it is no problem to create aerosol, and such a broad range is also convenient to support vaporisation in case your batteries lose voltage (flexibility).
Ethyleneglycol is also possible (miscible with water and boiling point is even less than that of glycerine), but it is more expensive (because it is a shorter chain alcohol) than the other longer chain alcohols. That is why as Nebelfluid for discos they also use glycerol. Hope it helps.
Ethyleneglycol is more toxic and glycerol too. The last become decompose at >130 C to acrolein.
hello,
thanks for your input.
what i was actually wondering, despite water consuming more energy due to it's polarity, is it just economic or safety reasons why e cigarettes dont use water as the solvent?
rgds, patrick
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