Monoethylene Glycol (MEG):
Monoethylene glycol (MEG) is a colorless, odorless, and hygroscopic liquid primarily used in the production of polyester fibers and resins. It is also an important chemical intermediate in various industries.
Key Applications
- Polyester Production: MEG is used in making polyester fibers for textiles and plastic bottles, accounting for 60-70% of global MEG use.
- Antifreeze and Coolants: MEG lowers the freezing point of water, making it essential for automotive antifreeze and coolants.
- Deicing Fluids: Used in aircraft deicing to prevent ice build-up in cold weather.
- Hydraulic Fluids and Lubricants: Employed in some hydraulic systems and lubricants for water solubility and cleaning.
- Chemical Intermediate: MEG is a precursor in making chemicals like dimethyl terephthalate (DMT), used in polyester.
- Solvents: Used in paints, coatings, adhesives, and other formulations.
Transportation
- Bulk Liquid: MEG is transported via tank trucks, rail cars, and marine tankers.
- Smaller Quantities: For small shipments, MEG is packed in drums or IBC containers.
Storage
- Conditions: Store in cool, dry, and well-ventilated areas to prevent freezing. It is best kept in stainless steel or plastic containers.
- Safety: Protect from direct sunlight and heat. Use appropriate PPE (gloves, goggles) during handling.
Safety Considerations
- Toxicity: Ingesting MEG is toxic, causing symptoms like nausea, dizziness, and kidney damage in severe cases.
- Environmental Impact: MEG is biodegradable but can contaminate water if spilled in large quantities.