What is the advantage of using 70% ethanol or methanol as solvent for extract preparation and not 60% or 80%??

We often use 70% alcohol to dissolve plant extracts. Why it is well accepted as 70%? Does it contain some advantages over the other proportions (say 60%, 80%, or 90%) or it is just because 70% is...

09 August 2020 1,788 3 View