【CAS】107-21-1
Chemical formula: C2H6O2
Molecular weight: 62.07
【Structural Formula】
1. Product Property
Melting point: -13.2℃ Boiling point: 197.5 Density: Relative density (water =1)1.11; Vapor pressure: 6.21kPa at 20℃ Flash point: 110℃ Solubility: Miscible with water, also miscible with ethanol, ether, etc. Stability: Stable; Appearance and properties: Colorless, odorless, sweet-tasting, viscous liquid.
2. Quality Standards
| Parameter | Industrial Grade | High Purity Grade |
| Purity (C₂H₆O₂), % ≥ | 99.0 | 99.8 |
| Water content, % ≤ | 0.2 | 0.05 |
| Acidity (as CH₃COOH), % ≤ | 0.005 | 0.001 |
| DEG (Diethylene Glycol), % ≤ | 0.1 | 0.01 |
| Iron (Fe), ppm ≤ | 1.0 | 0.1 |
| Chlorides (Cl⁻), ppm ≤ | 5.0 | 1.0 |
| Ash content, % ≤ | 0.01 | 0.001 |
3. Application Scope and Usage
Ethylene glycol is primarily used as an antifreeze and coolant in automotive and HVAC systems due to its low freezing point (-12.9°C). It serves as a raw material in polyester fiber (PET) and plastic production. In the chemical industry, it functions as a solvent and humectant in inks, adhesives, and paints. Additionally, it is used in deicing fluids for aircraft and runways. Proper handling is essential due to its toxicity, requiring protective equipment (gloves, goggles) during industrial use.
4. Package and Storage
Melting point: -13.2℃ Boiling point: 197.5 Density: Relative density (water =1)1.11; Vapor pressure: 6.21kPa at 20℃ Flash point: 110℃ Solubility: Miscible with water, also miscible with ethanol, ether, etc. Stability: Stable; Appearance and properties: Colorless, odorless, sweet-tasting, viscous liquid.
