

Mono Ethylene Glycol (MEG)
Clear, hygroscopic Mono Ethylene Glycol liquid, fully miscible with water, used for antifreeze, polyester and PET.
PRODUCT DETAILS
MONO ETHYLENE GLYCOL 225KG (THAILAND) – ANTIFREEZE, POLYESTER AND MULTIPURPOSE RAW MATERIAL
Mono Ethylene Glycol (MEG) is a clear, hygroscopic, colourless, odourless liquid fully miscible with water. It is the main raw material for antifreeze, polyester fibres, PET resin and many industrial applications.
PRODUCT INFORMATION / Introduced packaging: 225 kg/drum (Thailand). The product is a clear, hygroscopic liquid. Acceptance criteria must be based on the COA of the actual batch delivered.
1. What Is MONO ETHYLENE GLYCOL 225KG (THAILAND)?
Mono Ethylene Glycol (MEG) is an organic compound with the formula C2H6O2, produced by the hydration of ethylene oxide. Thanks to its two hydroxyl groups, MEG is fully miscible with water, hygroscopic and participates in many chemical reactions. It is the main raw material for antifreeze, cooling fluids, polyester, synthetic fibres, PET resin and many other industrial applications.
2. Product Identification and Technical Data
| Property | Information |
|---|---|
| Product name | Mono Ethylene Glycol (MEG) |
| Common names | Ethylene Glycol; 1,2-Ethanediol |
| Chemical formula | C2H6O2 |
| CAS No. | 107-21-1 |
| EC No. | 203-473-3 |
| Molecular weight | 62.07 g/mol |
| Appearance | Clear, slightly viscous liquid |
| Odour | Odourless or very mild |
| Solubility | Fully miscible with water and many organic solvents |
| Flash point | ~111°C (closed cup) |
| Packaging | 225 kg/drum |
| Origin shown on packaging | Thailand |
2.1. Typical Commercial Specifications
| Parameter | Typical reference |
|---|---|
| Purity | ≥ 99.9% |
| Moisture | ≤ 0.1% |
| Density (20°C) | 1.113 – 1.116 |
| Boiling point | 196 – 199°C |
| Flash point | ~111°C (closed cup) |
| Freezing point | ~-12°C |
| Colour (Pt-Co) | ≤ 5 |
| Acidity (as acetic acid) | ≤ 10 ppm |
| Other parameters | According to batch COA |
TECHNICAL NOTICE / The values in this document are provided for reference only and do not replace the TDS, SDS or COA. Acceptance must be verified against the documentation of the actual delivered batch.
3. Key Features
- Strong hygroscopicity and full miscibility with water.
- Low freezing point when diluted, suitable for antifreeze.
- High purity for consistent quality.
- Versatile raw material for polyester, PET and many products.
- Good solubility in water and organic solvents.
4. Applications
4.1. Antifreeze and Cooling
- Raw material for automotive and industrial antifreeze.
- Cooling and heat-transfer fluids.
- Antifreeze for HVAC systems.
- Raw material for technical solutions.
- De-icing agent for runways and equipment.
4.2. Polyester and Chemicals
- Raw material for polyester fibre production.
- Raw material for PET resin (bottles, films).
- Raw material for unsaturated polyester resin.
- Solvent and humectant in industry.
4.3. Other Applications
- Antifreeze and solvent in paper and textile production.
5. Instructions for Use
- Use according to the technical guidance and recommended parameters of the manufacturer.
- Blend only with materials whose compatibility has been assessed.
- Perform compatibility and small-scale tests before full-scale production.
- Check shelf life, container condition and labels before use.
- Do not mix with incompatible chemicals without a technical assessment.
6. Safety, Storage and Transportation
- Wear gloves, safety goggles and protective clothing when transferring or handling Mono Ethylene Glycol.
- Work in a well-ventilated area and avoid prolonged skin and eye contact.
- Store in a dry, cool warehouse; keep drums on pallets and away from direct sunlight.
- Keep containers closed to prevent moisture absorption (especially for hygroscopic materials).
- Separate from strong oxidisers and incompatible chemicals.
- Do not discharge large quantities into drains, surface water or groundwater.
- Protect cargo from rain, secure the load and keep labels intact.
- In case of eye contact, rinse with clean water for at least 15 minutes. If swallowed, do not induce vomiting and seek medical attention.
7. Selection and Acceptance Criteria
- Verify the COA of the actual delivered batch against the technical requirements.
- Check appearance, colour, clarity and visible impurities.
- Check container condition, seals, labels and traceability information.
- Review the SDS for storage and emergency handling.
- Check homogeneity, water-insoluble matter and batch-specific parameters.
8. Frequently Asked Questions
• What is the CAS Number of
The CAS Number of the product is 107-21-1.
• What is the chemical formula?
The chemical formula of the product is C2H6O2.
• Is Mono Ethylene Glycol soluble in water?
The solubility is suitable for the intended application; refer to the batch TDS for specific values.
• What packaging is available?
Packaging and net weight per container are shown on the label and batch COA.
• Can it be blended with other solvents or chemicals?
Compatibility tests should be performed before large-scale blending.
• Does it require special storage?
Store in a dry, cool place, away from heat, flame and direct sunlight as recommended.
• Can industrial grade be used in food or cosmetics?
Only use grades certified for the intended application and meeting legal requirements.
• What if the quality of a batch is in doubt?
Contact the technical team, compare with COA/SDS and keep a sample for inspection.
3T CHEMICAL COMPANY LIMITED
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Please contact 3T Chemical for consultation on suitable products, packaging specifications, COA/MSDS documentation, and appropriate delivery solutions.


