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Azeo is 97.2%ABV

Posted: Fri Mar 06, 2015 5:58 am
by Maritimer
Recently, JacksonBrown showed me that azeo is 95.6%ABW (alcohol by weight), not %ABV (alcohol by volume). This was a total surprise. How many times have we seen pictures of alcoholometers proudly showing 95.6% sitting in a parrot? But alcoholmeters measure in %ABV.

It would make sense that the azeotrope would be given in ABW, as it is insensitive to temperature.

Converting from ABW to ABV gives 97.2%ABV at either 60*F or 20*C (the difference is only 0.003%).

M