What is the CAS number 111-46-6 Diethylene Glycol?
Physical and Chemical Properties
Molecular Formula: C4H10O3
Boiling Point: Around 245 °C (473 °F)
Melting Point: Approximately - 10.45 °C (13.19 °F)
Density: Slightly greater than water (about 1.118 g/cm³ at 25 °C)
| Product Name | Diethylene Glycol (DEG) | Purity | 99.5% Min |
| CAS No | 111-46-6 | HS Code | 29094100 |
| EINECS No | 203-872-2 | RTECS | ID5950000 |
| MF | C4H10O3 | Appearance | Colorless viscous liquid |
What is diethylene glycol used for?
1.Plastic and Polymer Industry
Diethylene glycol is used as a monomer or a modifier in the production of polyester resins. In addition, polyester resins made with DEG are used in the production of films for packaging applications, like food packaging films, due to their good barrier properties against moisture and gases.
It also plays a role in the production of polyurethanes.
2.Cosmetics and Personal Care
In the cosmetics industry, DEG can be found in some formulations as a humectant. It helps to retain moisture in products such as creams, lotions, and hair care items. This property is beneficial as it keeps the skin and hair hydrated, preventing dryness. However, its use in cosmetics has become more restricted in recent years due to safety concerns.

3.Pharmaceutical Industry
Diethylene glycol can dissolve certain drugs that are not easily soluble in water, helping to create stable liquid medications. However, its use has been largely replaced by safer alternatives due to the potential toxicity risks.
4.Other Industrial Applications
DEG is used as a component in antifreeze and coolant formulations. Its ability to lower the freezing point of water makes it suitable for use in automotive engines and other cooling systems to prevent freezing in cold weather. It is also used as a solvent in the production of paints, inks, and adhesives.
safety information
While DEG is highly useful, it's important to handle it carefully. Prolonged exposure or ingestion of DEG can be hazardous to health. Industries that work with DEG implement strict safety measures to avoid accidental exposure and environmental contamination.
Sustainability is becoming increasingly important in chemical industries, and many companies are working on improving the production processes of DEG to reduce environmental impact. Through recycling and recovery techniques, industries are minimizing waste and improving the overall sustainability of DEG production.
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