Diethylene glycol , DEG

Product Overview

Diethylene Glycol (commonly DEG, chemical CAS 111-46-6) is a water-miscible, colorless viscous liquid with excellent solvency and low volatility. It is used as a chemical intermediate, solvent, humectant and processing aid in polyester resin formulations, plasticizers, antifreeze blends and many industrial applications. Common synonyms and search variants we cover here include diglycol, diethylenglycol, diethylenglykol, 2 2 oxydiethanol, 2 2 hydroxyethoxy ethanol, 2 2 oxybis ethan 1 ol, ethanol 2 2 oxybis, and regional misspellings like d ethylene glycol.

Typical Specifications

Melting Point	−10 °C(lit.)
Boiling Point	245 °C(lit.)
Density	1.118 g/mL at 25 °C(lit.)
Vapor Density	2.14 (vs air)
Vapor Pressure	0.01 mm Hg ( 20 °C)
Refractive Index	n20/D 1.447(lit.)
Fp	143 °C
Storage Temp.	Keep in dark place,Sealed in dry,Room Temperature
Solubility	H2O: 50 mg/mL at 20 °C, clear, colorless
PKA	14.03±0.10(Predicted)
Form	Oily Liquid
Color	Colorless
Odor	Practically odorless.
PH	5.5-7.0 (25℃, 50mg/mL in H2O)
Relative Polarity	0.713
Explosive Limit	2-12.3%
Water Solubility	SOLUBLE
Freezing Point	-10.45℃

Main uses & Applications

1. Textile Industry: DEG is widely used as a solvent in textile dyeing and printing processes, helping in dispersing and carrying dyes, enhancing color intensity and uniformity.
2. Adhesives and Resins: DEG is employed as a solvent and viscosity modifier in the formulation of adhesives and resins, contributing to improved flow, adhesion, and workability of these products.
3. Paints and Coatings: DEG finds application in the production of paints, varnishes, and coatings as a solvent and humectant. It helps maintain the desired consistency, prevents drying or hardening, and enhances the durability and appearance of the final coating.
4. Personal Care Products: DEG can be found in certain cosmetics and personal care products, such as moisturizers, lotions, and shampoos, where it acts as a humectant, helping to retain moisture and improve product stability.
5. Antifreeze and Coolants: DEG is utilized as an antifreeze agent in automotive engine coolants and heating, ventilation, and air conditioning (HVAC) systems. Its low freezing point and heat transfer properties help prevent freezing and provide effective cooling.
6. Pharmaceutical and Chemical Processes: DEG serves as a solvent, catalyst, or reaction medium in various pharmaceutical and chemical processes, facilitating the synthesis and purification of pharmaceutical compounds and specialty chemicals.
7. Polyester Resins: DEG is an intermediate in the production of unsaturated polyester resins, which are used to make durable plastics and coatings.
8. Plasticizers: DEG enhances flexibility and durability in plastics, especially PVC.
9. Solvent Applications: Acts as a solvent for dyes, inks, and adhesives.
10. Tobacco Industry: DEG acts as a humectant in cigarette and tobacco manufacturing.