Product Introduction
Ethylene glycol is a colorless, odorless, viscous liquid with a slightly sweet taste. It mixes easily with water and many organic solvents. Key traits:
- Physical Behavior: Boils around 197°C (high boiling point from strong hydrogen bonding) and freezes at about -13°C. Dense (~1.11 g/cm³ at 20°C) and low - volatility, so it doesn't evaporate quickly.
- Chemical Role: As a diol (two - hydroxyl structure), it forms esters (e.g., with terephthalic acid for polyester) and interacts via hydrogen bonding. Made commercially from ethylene: first oxidized to ethylene oxide, then reacted with water.
Product Specification
| ITERM |
INDEX |
RESULT |
| Qualified |
Industrial |
Superior |
| Apprearance |
Colorless, transparent, non-mechanical impurity |
| Water % |
≤1 |
≤0.3 |
≤0.01 |
≤0.01 |
| Density |
1. 118~1. 120 |
1. 11~1. 12 |
1. 1150~1. 1159 |
1. 1150 |
| Initial boiling point ºC |
≥185 |
≥182 |
≥195 |
195 |
| End boiling point ºC |
≤199 |
≤200 |
≤200 |
200 |
| Freezing point ºC |
≥- 12.5 |
≥- 12.5 |
≥- 12.6 |
12.6 |
| Ignition temperature ºC |
≤358 |
≤358 |
≤418 |
418 |
| Iron content (Fe) % |
≤0.00001 |
≤0.002 |
- ≤0.0001 |
0.0001 |
| Ash content % |
≤0.001 |
≤0.001 |
≤0.0001- |
0.0001 |
| Diethylene glycol % |
≤0. 1 |
≤0. 1 |
≤0.001 |
0.001 |
| Ethylene glycol % |
≥99 |
≥99 |
99.9 |
99.93 |
| UV refractive index. % |
≥75 |
≥72 |
≥80.5- |
80.5 |
| UV avoidance. % |
≥92 |
≥89.2 |
≥97 |
97 |
| UV transmittance % |
≥95 |
≥95- |
≥96 |
96 |
Packaging & Shipping
Product Application
1. Automotive Antifreeze
Blended with water (often 50:50), it lowers freezing points (to ~-34°C) and raises boiling points of coolant. Prevents engine freeze - ups in winter and overheating in summer-critical for vehicle reliability.
2. Polyester Manufacturing
A core raw material for polyester fibers/resins (e.g., PET). Paired with terephthalic acid, it creates polymers used in:
- Textiles (clothing, upholstery) for strength and wrinkle resistance.
- Packaging (plastic bottles) for durability and barrier properties.
3. Industrial & Specialty Uses
- Heat - Transfer Fluids: Used in systems like solar panels or geothermal loops-its stability over wide temps (freeze/boil resistance) makes it ideal.
- Deicing Agents: Applied on airport runways or industrial surfaces to melt ice/snow (though less common than other glycols for cost).
- Chemical Intermediates: Builds products like solvents, lubricants, or surfactants via reactions with other chemicals.
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