I have a question that for some reason or another i think you may have the answer too. This is entirely a hypothetical situation.
My question is about the evaporation point of methanol vs ethanol. One is around 148 and the other is around 173. I think. When someone is trying to get rid of the methanol you should hold the temperature at around 148. and then when you want the ethanol you hold it at around 173. But where would you measure the temperature from? Would you measure liquid temperature or air temperature or gas temperature?