Diethylene Glycol Product Description
Diethylene Glycol (DEG) is a colorless, odorless, and hygroscopic liquid with a sweet taste. It is a type of glycol that is produced through the hydration of ethylene oxide. DEG is widely used in various industrial applications due to its properties as a solvent, plasticizer, and humectant. It is miscible with water, alcohols, and many organic solvents, making it a versatile compound in chemical formulations.
Key Properties of Diethylene Glycol:
- Chemical Formula: C4H10O3
- Molecular Weight: 106.12 g/mol
- Boiling Point: 245 °C (473 °F)
- Melting Point: -8 °C (18 °F)
- Density: 1.118 g/cm³ at 20 °C
- Viscosity: 1.2 mPa·s at 20 °C
Uses of Diethylene Glycol
Diethylene Glycol is utilized in a variety of applications across different industries, including:
- Antifreeze and Coolants: DEG is commonly used in automotive antifreeze formulations due to its low freezing point and ability to prevent corrosion.
- Solvent: It serves as a solvent for resins, dyes, and other chemicals in the manufacturing of paints, coatings, and inks.
- Plasticizer: DEG is used to enhance the flexibility and durability of plastics and rubber products.
- Humectant: In the food and cosmetic industries, it acts as a humectant to retain moisture in products.
- Chemical Intermediate: It is a precursor in the production of various chemicals, including polyethylene glycol and other glycol ethers.
Technical Data Table
| Property | Value |
|---|---|
| Chemical Formula | C4H10O3 |
| Molecular Weight | 106.12 g/mol |
| Appearance | Colorless, viscous liquid |
| Odor | Odorless |
| Boiling Point | 245 °C (473 °F) |
| Melting Point | -8 °C (18 °F) |
| Density | 1.118 g/cm³ at 20 °C |
| Viscosity | 1.2 mPa·s at 20 °C |
| Solubility in Water | Miscible |
| Flash Point | 132 °C (270 °F) |
| Toxicity | Moderate (not for ingestion) |
Safety and Handling
- Storage: Store in a cool, dry place away from heat sources and incompatible materials.
- Personal Protective Equipment (PPE): Use gloves and goggles when handling to prevent skin and eye contact.
- First Aid Measures: In case of contact with skin or eyes, rinse thoroughly with water. Seek medical attention if irritation persists.
Diethylene Glycol is a valuable chemical with diverse applications, but it should be handled with care due to its moderate toxicity.