Properties of MEG:

• Chemical Formula: C₂H₆O₂
• Molecular Weight: 62.07 g/mol
• Appearance: Clear, colorless, and odorless liquid.
• Density: 1.1132 g/cm³ at 20°C.
• Boiling Point: 197.3°C.
• Melting Point: -12.9°C.
• Solubility: Miscible with water, alcohols, and many organic solvents.
• Hygroscopic Nature: Absorbs moisture from the air.

Production Process of MEG:

1. Ethylene Oxide Production: Ethylene is oxidized in the presence of a catalyst to produce ethylene oxide (EO).
2. Hydration Reaction: Ethylene oxide reacts with water to form MEG.
3. Purification: The crude MEG is purified through distillation to remove byproducts.
4. Final Product: The purified MEG is stored in tanks and transported for industrial use.

Applications of MEG:

• Polyester Production: Used in making PET for fibers and plastic bottles.
• Antifreeze and Coolants: Lowers the freezing point of water.
• Hydraulic and Brake Fluids: Provides stability and low viscosity.
• Deicing Fluids: Used for aircraft and runways.
• Solvents: Used in paints, inks, and resins.
• Other Applications: Adhesives, paper, textiles, and personal care products.

Advantages of MEG:

• Versatility: Used in a wide range of industries.
• Efficiency: Effective at low concentrations.
• Cost-Effective: Relatively inexpensive.

Disadvantages of MEG:

• Toxicity: Requires careful handling and storage.
• Environmental Concerns: Improper disposal can harm ecosystems.
• Flammability: Combustible at high temperatures.