Ethanol absolute refers to a high-purity aqueous solution of ethanol, a mixture of ethanol and water. Anhydrous ethanol is generally considered to be 99.5% ethanol.

PRODUCT PROPERTIES

Appearance and Properties: Colorless liquid with a distinctive aroma. Melting Point: -114°C

Density: 0.79 g/cm³

Boiling Point: 78°C

Volatility: Very volatile

Refractive Index: 1.3611 (20°C)

Saturated Vapor Pressure: 5.33 kPa (19°C)

Heat of Combustion: 1365.5 kJ/mol

Critical Temperature: 243.1°C

Critical Pressure: 6.38 MPa

Logarithm of the Octanol/Water Partition Coefficient: 0.32

Flash Point: 12°C (Open)

Ignition Temperature: 363°C

Solubility: Miscible with water in all proportions and miscible in most organic solvents, including ether, chloroform, and glycerin.

PRODUCT APPLICATIONS

Ethanol is an important organic solvent, widely used in pharmaceuticals, coatings, hygiene products, cosmetics, oils, and other applications, accounting for approximately 50% of total ethanol consumption. Ethanol is an important basic chemical raw material used in the production of acetaldehyde, ethylene, ethylamine, ethyl acetate, acetic acid, and ethyl chloride. It also serves as an intermediate for numerous products, including pharmaceuticals, dyes, coatings, fragrances, synthetic rubber, detergents, and pesticides, with over 300 products. However, ethanol's use as a chemical intermediate is gradually declining, with many products, such as acetaldehyde and acetic acid, no longer using ethanol as a raw material, replacing it with other raw materials. A 75% aqueous ethanol solution has strong bactericidal properties and is a commonly used disinfectant. Specially refined ethanol can also be used in beverages. Similar to methanol, ethanol can be used as an energy source. Some countries have begun using ethanol as a fuel for automobiles, either alone or blended with gasoline (10% or more) to conserve gasoline.