Because the concentration of anhydrous ethanol is too high, it forms a protective layer on the surface of the bacteria. Ethanol is a non-polar molecule, and after forming a protective film, the alcohol cannot reach the bacteria, so it cannot be completely sterilized. While 75% ethanol is usually used, water molecules are polar molecules, and water and ethanol can be mixed and dissolved in any proportion, pure ethanol can smoothly enter the protein molecules inside the cell, ethanol penetration is smoother, better disinfection.



Effect and use of anhydrous ethanol

1, widely used in medicine, paint, hygiene products, cosmetics, oils and other aspects, accounting for about 50% of the total consumption of ethanol.

2, ethanol is an important basic chemical raw material, used to manufacture acetaldehyde, ethylene diene, ethylamine, ethyl acetate, acetic acid, chloroethane, etc., and derived from medicine, dyes, coatings, spices, synthetic rubber, detergents, pesticides and other products of many intermediates, its products as many as 300 kinds.

3, ethanol can be used as energy, and some have begun to use ethanol alone as vehicle fuel or mixed into gasoline (more than 10%) to save gasoline.