Key Properties
Ethylene Glycol (EG) is a simple diol with the molecular formula C₂H₆O₂ and CAS No. 107-21-1. It is a colorless, odorless, viscous liquid with a sweet taste. It has a boiling point of about 197 °C and is miscible with water and many organic solvents. Due to its strong freezing-point depression ability, it is widely used in antifreeze and heat transfer systems.
Key Features
Ethylene Glycol offers excellent antifreeze performance, high boiling point, and good water compatibility. It is also an important raw material for polyester production, especially PET resin and polyester fiber. Its stable supply and broad downstream demand make it one of the most important bulk chemical intermediates in the polymer and industrial fluid industries.
Main Applications
Ethylene Glycol is widely used in automotive antifreeze, industrial coolant, aircraft deicing fluids, and heat transfer systems. It is also a key raw material for PET resin, polyester fibers, plastic bottles, films, and packaging materials. In addition, it can be used in inks, coatings, adhesives, chemical intermediates, and natural gas dehydration systems.
Production Process
Ethylene Glycol is mainly produced from ethylene through ethylene oxide. Ethylene is first oxidized to ethylene oxide, which is then hydrated to produce ethylene glycol. The final product is purified by distillation to obtain industrial-grade or high-purity ethylene glycol.
