Supplier of High-Quality Mono Ethylene Glycol-MEG
Introduction
Mono Ethylene Glycol (MEG) is a colorless, odorless organic compound widely used as a raw material in industrial applications. Known for its high solubility and low volatility, MEG is a key ingredient in antifreeze formulations, polyester resins, and polyethylene terephthalate (PET) production. Its versatility and efficiency make it indispensable in sectors ranging from automotive to textiles, driving demand among global manufacturers.
Physical and Chemical Properties
Understanding MEG’s characteristics is key to leveraging its industrial potential.
Physical Properties of MEG
- State: Liquid at room temperature
- Color & Odor: Colorless, odorless
- Melting Point: -12.9°C (10.8°F)
- Boiling Point: 197°C (386°F)
- Density: 1.113 g/cm³
- Solubility: Fully miscible with water, alcohols, and organic solvents
Chemical Properties of MEG
- Formula: C₂H₆O₂ (IUPAC Name: Ethane-1,2-diol)
- Flammability: Flash point of 111°C (232°F)
- Toxicity: Harmful if ingested; requires careful handling
Grades of Mono Ethylene Glycol
Mono Ethylene Glycol is classified into three primary grades based on purity and application:
- Industrial Grade (≥99% purity): Used in antifreeze, coolants, and deicing fluids. Meets ASTM E2020 standards.
- Fiber Grade (≥99.8% purity): Essential for polyester fiber and PET resin production. Complies with ISO 17052 for low UV transmittance.
- Ultra-High Purity (≥99.9%): Designed for food-grade PET bottles and pharmaceuticals, adhering to FDA and EU regulations.
Regional standards vary: the U.S. emphasizes ASTM testing, while the EU prioritizes REACH compliance. Advanced analytical methods like gas chromatography ensure trace impurities (e.g., DEG, aldehydes) remain below 0.1%, safeguarding product performance.
Top Applications of Mono Ethylene Glycol
1. Polyester and PET Manufacturing
Over 50% of global MEG production fuels polyester synthesis. MEG reacts with terephthalic acid to create PET resins, essential for textiles, beverage bottles, and food packaging.
2. Automotive Antifreeze and Coolants
MEG’s ability to depress freezing points to -40°C makes it ideal for engine coolants, protecting vehicles from freezing and overheating.
3. Heat Transfer Fluids
In HVAC and geothermal systems, MEG efficiently manages thermal energy, ensuring stable performance in extreme temperatures.
4. De-icing Solutions
Aviation and transportation sectors rely on MEG-based fluids to prevent ice buildup on aircraft and runways.
5. Chemical Intermediates
MEG serves as a precursor for resins, adhesives, and surfactants, underpinning products like paints and detergents.
6. Pharmaceuticals and Cosmetics
As a humectant, MEG retains moisture in lotions, creams, and oral care products.
How is Mono Ethylene Glycol Produced?
MEG is synthesized via ethylene oxide hydrolysis:
- Ethylene Oxidation: Ethylene reacts with oxygen to form ethylene oxide (EO).
- Hydration: EO is hydrolyzed under heat or catalysis to yield MEG.
- Purification: Distillation removes impurities, ensuring high-purity MEG for critical applications.
Modern plants employ catalytic hydration to boost efficiency and reduce environmental impact.
Safety Guidelines for Handling MEG
While invaluable, MEG demands cautious handling:
- PPE: Wear nitrile gloves, goggles, and lab coats.
- Ventilation: Use fume hoods in confined spaces.
- Storage: Keep in sealed containers away from heat sources.
- Spill Response: Contain leaks with inert absorbents; dispose of per EPA guidelines.
Note: Chronic exposure may cause kidney damage—always follow OSHA safety protocols.
Packaging Solutions for Mono Ethylene Glycol
MEG is shipped in:
- Drums: 200L plastic/steel containers for small-scale needs.
- IBC Totes: 1,000–1,800L containers for mid-volume users.
- Bulk Tankers: Railcars or ISO tanks for industrial-scale delivery.
Select packaging based on volume, storage conditions, and transport regulations.
Conclusion
Mono Ethylene Glycol (MEG) is a linchpin of modern industry, driving innovation in polyester production, automotive safety, and chemical manufacturing. By adhering to safety standards and leveraging its adaptable properties, businesses can maximize MEG’s benefits while mitigating risks. Stay ahead in your industry by understanding how MEG’s unique capabilities align with your operational needs.
Read About TEG
TECHNICAL DATA SHEET OF MEG
| Characteristics | Unit | Specifications |
|---|---|---|
| Appearance | — | Clear Colourless |
| MEG Content | Wt % min | 99.9 |
| DEG Content | Wt % min | 0.04 |
| Specific Gravity | @20/20 Deg C | 1.1151-1.1156 |
| Water | Wt. % max | 0.04 |
| Color (before heating) | Pt-Co Units Max. | 5 |
| Acidity (as acetic acid) | Wt.ppm Max. | 10 |
| Chlorides (as CL) | Wt.ppm Max. | 0.1 |
| Sulfates | — | Nil |
| Iron | Wt.ppm Max. | 0.1 |
| Ash | Wt.ppm Max. | 10 |
| Aldehydes (as formaldehyde) | Wt.ppm Max. | 10 |