How To Make 70% Ethanol From 100% Ethanol (200 Proof)
Discover how easy it is to make your own 70% ethanol from 100% ethanol (200 proof) in this guide. You can buy 70% ethanol (140 proof ethyl alcohol) solutions online from Lab Alley or make your own. 70% ethanol solutions are used in homes for cleaning and in schools for disinfecting. In labs, 70% ethanol is used for herbal tinctures, histology, sterilization, DNA and RNA extraction.