diethyleneglycol

Diethylene glycol (DEG) is an organic compound with the formula O(CH2CH2OH)2. It is a colorless, practically odorless, viscous liquid with a high boiling point. DEG is miscible with water and most organic solvents. It is produced industrially by the hydration of ethylene oxide.

DEG is widely used as a solvent and as a raw material in the production of various chemicals, including polyesters, polyurethanes, and plasticizers. It also finds application as a humectant in tobacco products and as a coolant in automotive antifreeze. Its low vapor pressure and high boiling point make it suitable for applications where evaporation is undesirable.

Despite its utility, diethylene glycol is toxic. Ingestion can cause severe kidney damage, liver damage, and neurological effects. Fatalities have occurred due to accidental or intentional contamination of food and pharmaceutical products with DEG. Regulations and strict quality control measures are in place to prevent its use in food and pharmaceuticals. Proper handling and storage are essential to avoid exposure.