PRODUCT DATA SHEET (TDS)
1. Product Identification
| Item | Details |
| Product Name | Monoethylene Glycol (MEG) |
| Specification | Polyester Grade |
| Chemical Formula | C₂H₆O₂ |
| Molecular Weight | 62.07 g/mol |
| CAS No. | 107-21-1 |
| Appearance | Transparent liquid, free of mechanical impurities |
2. Typical Specifications (Polyester Grade, GB/T 4649-2018)
| Analysis Item | Unit | Standard Specification | Typical Test Result |
| MEG Purity | % (w/w) | ≥ 99.9 | 99.99 |
| Diethylene Glycol (DEG) | % (w/w) | ≤ 0.050 | < 0.0010 |
| Color (Pt-Co, before heating) | Hazen | ≤ 5 | 5 |
| Color (Pt-Co, after adding HCl and heating) | Hazen | ≤ 20 | 10 |
| Density (20℃) | g/cm³ | 1.1128 ~ 1.1138 | 1.1134 |
| Initial Boiling Point | ℃ | ≥ 196.0 | 197.5 |
| Dry Point | ℃ | ≤ 199.0 | 197.9 |
| Water Content | % (w/w) | ≤ 0.08 | 0.0098 |
| Acidity (as acetic acid) | mg/kg | ≤ 10 | 6.0 |
| Iron (as Fe²⁺) | mg/kg | ≤ 0.10 | < 0.10 |
| Ash Content | mg/kg | ≤ 10 | 1 |
| Aldehydes (as HCHO) | mg/kg | ≤ 8.0 | 0.7 |
| UV Transmittance @220nm | % | ≥ 75 | 91.6 |
| UV Transmittance @250nm | % | Report | 96.7 |
| UV Transmittance @275nm | % | ≥ 92 | 97.6 |
| UV Transmittance @350nm | % | ≥ 99 | 100.0 |
| Chloride (as Cl) | mg/kg | ≤ 0.5 | 0.05 |
3. Physical & Chemical Properties
| Item | Details |
| Melting Point | ~ -12.9 ℃ |
| Boiling Point | ~ 197.3 ℃ |
| Solubility | Miscible with water, alcohols, ketones, and many organic solvents |
| Density | ~ 1.113 g/cm³ (20 ℃) |
| Stability | Stable under normal conditions; hygroscopic |
4. Applications
- Primary raw material for PET resin, polyester fiber, bottle chips, and film production
- Used in the manufacturing of antifreeze agents, solvents, and chemical intermediates
- Applied in the synthesis of unsaturated polyester resins, polyurethane, and plasticizers
5. Packaging
- Packaging Type: 220L steel drums, ISO tanks, or bulk liquid transport via tank truck/rail
- Handling Notes: Keep containers sealed; store in a dry, well-ventilated area away from heat sources
6. Storage
- Store in a cool, dry, and well-ventilated warehouse
- Protect from direct sunlight, moisture, and incompatible materials (strong acids, strong bases, oxidizers)
- Shelf Life: 24 months under proper storage conditions
7. Safety & Handling
- Hazard Classification: Mild irritant to skin, eyes, and respiratory tract; non-hazardous for transport
- Recommended PPE: Safety goggles, chemical-resistant gloves, and protective clothing
- Use in well-ventilated areas to avoid vapor accumulation
- For complete safety instructions, refer to the product SDS (Safety Data Sheet)
8. Test Methods
- Purity/DEG: GB/T 14571.2-2018 (GC)
- Color: GB 3143-1982 (Pt-Co scale)
- Density: GB/T 2013-2010 Method B
- Boiling Range: GB/T 7534-2004
- Moisture: SH/T 1055-1991 (Karl Fischer Titration)
- Acidity: GB/T 14571.1-2016 (Titration)
- Iron Content: GB/T 3049-2006 (AAS/ICP-OES)
- Ash Content: GB/T 7531-2008 (Gravimetric method)
- Aldehydes: GB/T 14571.3-2022 (Colorimetric method)
- UV Transmittance: GB/T 14571.4-2022 (Spectrophotometry)
- Chloride: GB/T 14571.5-2016 (Potentiometric titration/ICP-OES)
