Ethanol is an organic substance, commonly known as alcohol, and its chemical formula is CH3CH2OH(C2H6O or C2H5OH) or EtOH. It is a saturated monohydric alcohol with hydroxyl groups. At normal temperature and pressure, it is a flammable and volatile colorless transparent liquid, and its aqueous solution has a bouquet smell and is slightly irritating. It smells of wine, pungent and slightly sweet.
The density of ethanol liquid is 0.789 g/cm (20 C), the density of ethanol gas is 1.59kg/m, the boiling point is 78.3℃, and the melting point is-11℃. It is flammable, and its steam can form an explosive mixture with air, which can be mixed with water in any proportion. It is miscible with most organic solvents such as chloroform, ether, methanol and acetone, and its relative density is (D 15.56) 0.85438+06.