Rubbing alcohol 70% is one of the most common and versatile household items. The active ingredient is isopropyl alcohol of 70% concentration, making it a strong antiseptic. The inactive ingredient is purified water, and it is a clear liquid overall. 

The process of making rubbing alcohol 70% does not involve many stages. It consists of either hydrogenation of acetone or a hydration reaction where water and propene are combined. The hydration process can take two forms. In both cases, the isopropyl alcohol will have to be separated from the water and other by-products.