What Is 200 Proof Ethanol? How Does It Compare to Other Types of Ethanol? 200 proof ethanol is the purest form of ethanol. You can buy it online, from web stores such as Simple Solvents. Like any other alcohol, you can use it for various purposes, and it has its advantages and drawbacks. Most people do not know the difference between 200 proof ethanol and some other types of the substance. In this article, we will discover what 200 proof alcohol is and how it compares to other types of ethanol. First, we will...